TY - JOUR AU - Walerian Dubnicki AU - Krystian Zorychta TI - Quasiconvex and pseudoconvex functions in nonlinear programming JO - Mathematica Applicanda PY - 1987 SP - 5 EP - 23 VL - 15 IS - 29 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v15i29.1686/ DO - 10.14708/ma.v15i29.1686 LA - pl ID - 10_14708_ma_v15i29_1686 ER -