各种分区布拉德福系数关系的新证法  

A NEW PROOF OF BRADFORD COEFFICIENTS RELATIONS ON VARIOUS GROUPING METHODS

作　　者：许乃芳[1] 范钦杰[1] 梁怀学[1] 

机构地区：[1]四平师范学院

出　　处：《松辽学刊（自然科学版）》1996年第1期38-40,共3页Songliao Journal (Natural Science Edition)

摘　　要：本文用特殊的方法证明了各种分区布拉德福系数具有α_m=α^(?)的关系.且在证明中指出分多区情况下布拉德福定律同洛特卡定律的一致性.同时得到两个有用的参数估计式.即T=e^(?);α_H=T^(1/R).In this paper,we have proved the Bradford coefficients relations of various grouping methods,which satisfy am = with special approach. The identity of Bradford law and lotka law under the condition of more groups was pointed out in our proof.Meanwhile we have got two useful estimation parametric equations Vi2,T=,aH = T.

关 键 词：布拉德福系数 布拉德福定律 文献计量学 

分 类 号：G257[文化科学—图书馆学]