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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
primary reference is
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "primary reference is" is correct and usable in written English.
It can be used when identifying the main source or point of reference for a particular topic or discussion. Example: "In this study, the primary reference is the research conducted by Smith et al. (2020), which provides the foundational data for our analysis."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(2)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
3 human-written examples
The primary reference is Kelly's marriage to Prince Rainier of Monaco in 1956, but the shape also recalls the dress worn by Princess Margaret at her wedding four years later; the lace sleeves nod to the dresses of the Italian Catholic tradition, but the design of the lace itself – handmade at Hampton Court – features roses, thistles, daffodils and shamrock.
News & Media
The primary reference is to those who were "buying and selling".
News & Media
If an interaction derived from a single primary reference is found in slightly different forms in multiple databases, a single instance with the appropriate reference appears in DroID.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
The primary reference was Cz.
Science
The primary reference was a study by Canadian researchers on anticipated public response to terrorism.[ 10] Questions on the threat likelihood, effect on family, and behavioural compliance, were adapted with permission by subject matter experts and survey methodologists.
Science
TBDTs with low protein sequence similarity (<70%) with the primary references were considered as new types and were added to the list of references.
Science
In the view of evidence-based medicine, it is important that primary references are available to substantiate textbook statement and clinical practice.
To ensure the high quality of dbPPT and allow the user to query further information about the identified phosphorylation sites, the primary references were also provided.
The primary reference source is also presented for each chemical.
"These will be the first elections to take place since the emergence of Brazil's new political climate, fuelled by a new generation whose primary political reference is the popular government of former president Lula [Luiz Inácio Lula da Silva].
News & Media
The method may be considered as primary one as reference is displacement rather than acceleration.
Science
Expert writing Tips
Best practice
When using the phrase "primary reference is", ensure that the reference you are identifying is indeed the most important or foundational source for your analysis or argument. State the reference clearly and provide context for its significance.
Common error
Avoid using "primary reference is" when the source is merely one of several equally important references. Instead, use a less emphatic phrase like "one key reference is" or "a significant source is".
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "primary reference is" functions as a declarative statement that identifies the main source or point of reference for a particular subject. As Ludwig AI confirms, this phrase is correct and usable in written English. It serves to pinpoint the most important or foundational resource being used.
Frequent in
Science
60%
News & Media
30%
Encyclopedias
10%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "primary reference is" is a grammatically correct and usable phrase, as noted by Ludwig AI, primarily used to identify the most important source or point of reference in academic, scientific, and professional writing. While alternatives like "main source is" or "key reference is" can be used for variety, it's crucial to ensure that the identified reference truly holds the most significant weight in the context. Be mindful of overstating a reference's importance, and ensure accurate attribution to maintain credibility.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
main source is
Focuses on the origin of information, replacing 'reference' with 'source'.
key reference is
Highlights the importance of the reference, using 'key' to denote significance.
principal source is
Emphasizes the primary nature of the source, using 'principal' as a synonym for 'primary'.
chief reference is
Indicates the most important reference, using 'chief' to convey prominence.
central reference is
Suggests that the reference is pivotal to the topic.
primary point of reference is
Expands 'reference' to 'point of reference' for added clarity.
core reference is
Highlights that the reference is fundamental.
main point of origin is
Emphasizes where the information originates, replacing 'reference' with 'point of origin'.
foundational reference is
Highlights that the reference serves as a base for further understanding.
defining reference is
Implies the reference sets the standard or boundaries for the discussion.
FAQs
How can I use "primary reference is" in a sentence?
You can use "primary reference is" to identify the main source or starting point for information or analysis. For example, "The primary reference is Smith's 2020 study, which provides the foundational data for our analysis."
What are some alternatives to saying "primary reference is"?
Alternatives include "main source is", "key reference is", or "principal source is", depending on the specific nuance you want to convey.
Which is correct: "the primary reference is" or "a primary reference is"?
The choice between "the primary reference is" and "a primary reference is" depends on the context. Use "the" when you are identifying a specific, definitive reference. Use "a" when you are introducing one of several primary references.
What does "primary reference" mean?
A "primary reference" refers to the most important or foundational source of information for a particular topic or analysis. It's the reference that provides the core concepts, data, or arguments.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested