Air Serbia's Airbus A319 version 100 YU-APD. This machine was first taken in use in October 2004. It's a former Air Berlin machine which after the bankruptcy of AB went first to Belle Air and then in 2014 to Air Serbia.
Picture from Amsterdam-Schiphol airport 16.3.2022 by Ilkka Siissalo.

Air Serbia's Airbus A319 YU-APA in Schiphol. After Russia started its war against Ukraine and the EU countries put an embargo to stop Russian airlines flying to EU, the connection via Serbia has suddenly become quite popular for Russian tourists
Picture from Amsterdam Schiphol airport 12.6.2023 by Ilkka Siissalo.