Analysis of information sources in references of the Wikipedia article "Mark Adler" in English language version.
gzip was written by Jean-loup Gailly…and Mark Adler for the decompression code.
Within one week, most of the major features of PNG had been proposed, if not yet accepted: delta-filtering for improved compression (Scott Elliott and Mark Adler).…The true glory is really reserved for three people, however: Info-ZIP's Jean-loup Gailly and Mark Adler (both also of gzip fame), who originally wrote Zip's deflate() and UnZip's inflate() routines and then, for PNG, rewrote them as a portable library called zlib; and Guy Eric Schalnat of Group 42, who almost single-handedly wrote the libpng reference implementation (originally pnglib) from scratch.