ISA Transactions
ISA Transactions > 1998 > 37 > 2 > 105-111
ISA Transactions > 1998 > 37 > 2 > 87-94
ISA Transactions > 1998 > 37 > 2 > 79-85
ISA Transactions > 1998 > 37 > 2 > 123-131
ISA Transactions > 1998 > 37 > 2 > 95-104
ISA Transactions > 1998 > 37 > 2 > 113-122