H. Q. Nguyen

Semimodular functions and combinatorial geometries

H. Q. Nguyen, 1978 .

Weak cuts of combinatorial geometries

H. Q. Nguyen, 1979 .

Projections and weak maps in combinatorial geometries

H. Q. Nguyen, 1978, Discret. Math..

Extremal semi-modular functions and combinatorial geometries

H. Q. Nguyen, 1975 .

Functions of the category of combinatorial geometries and strong maps

Hien Quang Nguyen, H. Q. Nguyen, 1977, Discret. Math..