The opening starting with 1.Nb1-c3 (long algebraic notation) or 1.Nc3 (short algebraic notation) is called "Van Geet Opening". It is in fact very rare to see this opening being played by either professional players or by amateurs who study the game seriously. White's c pawn gets blocked by the knight with this move, and this might be the reason why pros don't use it very often.

On the other hand, Mikhail Chigorin(1850-1908), a strong russian player from the 1800's played a similar move with the black pieces: 1.d4 d5 2.c4 Nc6 and the opening got his name (Chigorin's Defense).

Some opening manuals feature a few paragraphs on these openings (Van Geet Opening and Chigorin Defense) like, for example, FCO - Fundamental Chess Openings by Paul Van der Sterren, Chess Opening Essentials Vol2. and Vol. 4, among many others.