Used and loved by millions
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
key reference is
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "key reference is" is correct and usable in written English.
You can use it when identifying an important source or point of information relevant to a discussion or topic. Example: "In our research, the key reference is the study conducted by Smith et al. in 2020, which provides crucial insights into the subject."
✓ Grammatically correct
Science
News & Media
Alternative expressions(3)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
A list of key references is included.
A more detailed list of selected key references is attached to the course reading list.
Academia
Brief discussions of various foundation types and key references are also outlined.
In particular the following key references are recommended for those who want to deepen their understanding and trace the evolution of the ideas.
News & Media
All key references are provided and 30 complete sets of material parameters for different types of relaxor-PT single crystals are listed in Appendix A. It is the intension of this review article to serve as a resource for those who are interested in basic research and practical applications of these relaxor-PT single crystals.
Key references were GF Midgley and D Gou (unpublished work), (Turpie et al. 2010), (Midgley et al. 2005), who used these scenarios in the context of Namibia.
These topics, with some key references are mentioned briefly, but the focus here is on the potential for improvements in estimates of terrestrial denitrification relevant to N pollution questions at ecosystem, landscape and regional scales.
Science
Key references are listed 1 5.
Science
Key references were examined by first and second authors.
Science
Reference lists of the final dataset and other key references were also scanned.
Science
In addition, the bibliographies of retrieved articles were reviewed and key references were obtained.
Science
Expert writing Tips
Best practice
Use "key reference is" to clearly identify the most important source or piece of information within a discussion or research paper.
Common error
Avoid using "key reference is" excessively. Vary your language by using synonyms such as "primary source", "main reference", or restructuring your sentences to maintain reader engagement.
Source & Trust
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "key reference is" functions as a connector to highlight a specific source of information as being particularly important or central to a discussion, argument, or research. Ludwig AI states that it's usable in written English.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, the phrase "key reference is" serves to emphasize a vital source of information in various types of writing. According to Ludwig AI, this phrase is considered grammatically correct and usable. Although it is not commonly found, it can be a useful way to highlight a central element in your analysis or argument. Alternatives such as "primary source is" or "main reference is" can be used to vary your writing style. Remember to use this phrase judiciously to maintain clarity and impact in your communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
primary source is
Replaces "key" with "primary", indicating the main source of information.
main reference is
Substitutes "key" with "main", highlighting the principal reference.
essential reference is
Uses "essential" instead of "key", emphasizing the importance of the reference.
crucial reference is
Replaces "key" with "crucial", stressing the critical nature of the reference.
important reference is
Uses "important" instead of "key", indicating the significance of the reference.
the reference of note is
Rephrases the sentence to emphasize that the reference is noteworthy.
central point of reference is
Expands the phrase to indicate that it is a central point to refer back to.
significant source is
Focuses on the source being significant rather than just a reference.
relevant point of reference is
Highlights the relevance of the reference point.
a major point of comparison is
Shifts the focus to comparison rather than a simple reference.
FAQs
How can I use "key reference is" in a sentence?
Use "key reference is" to point out the most important source or piece of information. For example, "In this analysis, the "key reference is" Smith's study on economic indicators".
What are some alternatives to "key reference is"?
You can use alternatives like "primary source is", "main reference is", or "essential source is" depending on the context. The "primary source is" often the most direct evidence available.
Is it more appropriate to use "key reference is" or "main reference is"?
Both "key reference is" and "main reference is" are correct and generally interchangeable. The choice depends on your writing style and the specific emphasis you want to convey.
In academic writing, is "key reference is" considered formal enough?
Yes, "key reference is" is suitable for academic writing. However, ensure the source you are referencing is also academically sound and properly cited. Using stronger synonyms like "essential reference is" can also add emphasis.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested