Despite insufficient funds, it is apparent that an increasing number of Serbian researchers are publishing in fee-based OA journals. In 2019, the University of Belgrade conducted a survey to establish the amount of APCs paid to the publishers, and the funding sources of the APCs. The following two actions were taken to address the findings of the survey:University of Belgrade has joined OpenAPC portal (with data) RCUB ProRef service has been upgraded, and now includes information about APC ...