Patenting Business Methods using a symbolic business process calculushttp://books.google.ca/books?id=47-RI0HwIT0C&pg=PA191&lpg=PA191&source=web&ots=3MVcWyY7CC&sig=XdHoEYT60PHdhRyCU2lGFauEfGA&hl=en by sohail • 18 years ago 1 0 18 years agoBObooks.google.ca