The phrase "ancillary source" is correct and usable in written English.
It can be used to refer to a secondary or supplementary source of information or support that adds value to a primary source.
Example: "In addition to the main textbook, the professor recommended several ancillary sources to enhance our understanding of the subject."
Alternatives: "supplementary source" or "secondary source".
Add revenue from television, video, DVD and ancillary sources, and we estimate that the Godfather books and movies have earned more than $1 billion since Puzo put pen to paper.
Two approaches were employed in this study: (1) ex-ante approach involving field survey and secondary data analysis from ancillary sources and (2) hydrochemical approach for the measurement of water quality parameters from springs.
As predictor variables for random forest models, we compiled spatial data on local and landscape soil characteristics, recent historical climate, landscape, and topography from ancillary sources (see Additional file 1 for a list of all variables used).
The other approach involves the decomposition of the ECG as a linear combination of different source signals [10]; in this case, it can be considered as a blind source separation (BSS) problem, where the source vector includes the atrial, ventricular and ancillary sources and the mixture is the ECG recording.
This is the case of atrial tachyarrhythmias, such as atrial fibrillation (AF) or atrial flutter (AFL), where the atrial and the ventricular activity can be considered as signals generated by independent bioelectric sources mixed in the ECG together with other ancillary sources [1].
Addresses that could not be geocoded to a particular parcel using information from the questionnaire and the ancillary sources were geocoded to the closest parcel address by street number.
The Web is still an ancillary news source for most people, after broadcasting and newspapers, Mr. Crosbie said.
To compete with other large promoters, Live Nation often pays high fees to touring artists — 90 percent of the ticket price, or more, is common — and is left to seek most of its profit from parking, concessions and other ancillary revenue sources.
In many cases, ancillary data sources can provide useful information to help distinguish between inseparable classes.
