The phrase "as described by several" is correct and usable in written English.
It can be used when referencing information or opinions that have been provided by multiple sources or individuals.
Example: "The phenomenon has been observed in various studies, as described by several researchers in the field."
Alternatives: "as noted by several" or "as mentioned by several".
The resulting four-year deal, as described by several people familiar with it, contains some unusual features.
The State Department narrative of events, as described by several administration officials and in a formal report to Congress, focuses on a turning point at public meetings in the fall of 2011, after a final evaluation of the pipeline's environmental impact.
From these 16 outcomes, Mueller matrix of the sample in transmission mode M x,y) was calculated, as described by several authors [ 21, 29].
Actual photographs would, of course, have an incendiary effect, particularly if they were as gruesome as described by several people in the Obama administration.
A significant difference between the juvenile and pre-flowering stages was the clear separation of AAB and ABB accessions into two cluster, as described by several genotyping studies18,24,50.
The programming, as described by several of the executives involved in the planning, would include acquired films, original series, imported series, news and information programs, talk shows, comedy shows and travel shows.
Aerosolised Legionella reached greater concentrations during the first minute, as previously described by several authors [ 34, 35].
Regardless, our data provide "a warning" concerning the use of DNA demethylating agents as an anti-cancer therapy and provide proof reinforcing the necessity of using specific DNMT inhibitors or unspecific DNMT1 inhibitors with an adequate and optimized dose schedule, as already described by several publications [ 20, 21].
For the 2d-modified PNAs, the preformed monomers give rise to epimerisation reactions during solid-phase synthesis, as described by us several years ago.
This review was conducted as transparently as possible according to a methodology described by several authors [ 7, 8, 10, 45– 45].
The full spectrum of angst was apparent in the newspapers, with commentators queuing up to denounce what was described by several as a "fiasco", with one, Yediot Ahronot's Sever Plocker calling on the Defence Minister, Ehud Barak, to resign.
