We have a server in my library deployed with KOHA to manage the library routine such as cataloguing and circulation; and then link the e-books and journals stored on the server to the catalogue so that those who choose to use the e-book can have access to it and download it while those who choose to use the hard copy can borrow it from the shelf. The developer we gave the work to said that is not possible that we either use one of the two on KOHA. Is that true/