For books that are frequently used by a member of (academic) staff, a long-term borrowing facility is possible (until the upcoming September 15th). These books only need to be regularized once a year.
Staff members/emeriti with assignments who wish to purchase one or more books can place their orders online via FintrA (access on campus or through eduVPN).
Upon approval of the purchase order, the financial department will forward it to the library, which will then handle the further processing and, of course, keep the requester informed.
The detailed procedure, including screenshots, is described in this manual/guide (pdf, 395 KB).