%0 Journal Article %T Ë«µº×´Æ¤°êÐÞ²¹Í·Æ¤Ô²ÐÎȱËð5Àý %A ËïÐÂÆ½ %A »ÆÎ¬À¤ %J - %D 1994 %U http://journal08.magtechjournal.com/Jwk_wjyx/CN/abstract/abstract8049.shtml