The phrase "ancillary means" is correct and usable in written English.
It can be used to refer to additional methods or resources that support a primary action or objective.
Example: "The project will require ancillary means to ensure its success, such as additional funding and expert consultations."
Alternatives: "supplementary methods" or "supporting resources".
Advances in free image processing software (e.g. Multispec, http://cobweb.ecn.purdue.edu/biehl/MultiSpec/, GRASS, http://grass.itc.it/), the fact that relatively accurate mapping without radar imagery can be undertaken [13] and the increasing availability of free high quality and contemporary satellite and ancillary data, mean that mapping at below 1 cent per km2 should be feasible.
The GSC, based on the concepts of hazard, vulnerability and resilience, can be calculated integrating ancillary data by means of rapid and not invasive field surveys and questionnaires distributed to the schools employees.
Nonetheless, short-term survival can be further improved, most likely by refinements in ancillary therapy and means of mechanical ventilation.
The adjective collateral, "parallel," came to mean "ancillary, subordinate"; as a noun, it is a pledge of security alongside a debt to ensure its payment.
The breadth, diversity, and ongoing nature of review for ancillary study proposals mean that the review process can pose a significant operational load.
Optional ancillary fees could also mean that student organizations and services would never be able to create a long-term plan.
This low tolerance means that seemingly ancillary or fussy choices like the width of a volume button; the diameter of a rounded corner; the speed of an animation or scrolling action all take on an exaggerated importance.
Clear needs exist to develop such ancillary data bases and the means for explicitly incorporating them into the risk estimation process.
If you're writing a message with limited papyrus, vellum and ink (or on stone) you're going to write down the most important points, and leave a lot of ancillary details out (like say, the means and length of creation) because that is the most efficient means of writing.
Now A-Rod knows better, and he also knows what becoming a regular in the network's fall lineup could mean for his ancillary earning potential.
An earlier version of the ancillary copyright law would have meant that Google, Google News and other aggregators and search engines would have had to pay, even if they just displayed "single words or very small text excerpts" from copyrighted text.
