@base . a , ; "Marketing Science Institute" . a . a ; "0542-7398" ; . a ; "0542-7398" ; . a ; ; "20050922134600.0"^^ ; ; . a ; . "Massachusetts" . a , , ; , , ; "Marketing Science Institute :" ; ; ; "0542-7398" ; ; "0542-7398" ; ; "0542-7398" ; "Marketing Science Institute :" , "Marketing Science Institute" ; . .