TY - JOUR AU - Liang, Sihua AU - Zhang, Jihui TI - Existence of multiple positive solutions of $n{\rm th}$-order $m$-point boundary value problems JO - Mathematica Bohemica PY - 2010 SP - 15 EP - 28 VL - 135 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/MB.2010.140679/ DO - 10.21136/MB.2010.140679 LA - en ID - 10_21136_MB_2010_140679 ER -