00341    a2200121   4500020001800000082001600018100001900034245006200053260003300115300001900148650001800167700003400185  a9783540212898  a512.52bCHE  aChen, Guang-ya  aVector optimization bset-valued and variational analysis  aBerlinbSpringerc2005g2005  ax, 308p.c24cm  aVECTOR SPACES  aHuang, Xuexiang; Yang, Xiaoqi