alphanum-bst – Modified alpha BibTeX style

Mod­i­fied from al­pha.bst in the BibTeX dis­tri­bu­tion; dif­fer­ences are: – La­bels do not con­tain the year; – Other­wise iden­ti­cal la­bels are dis­tin­guished by a num­ber, rather than a let­ter, and – En­tries are sorted by month as well as year.