In the Vinony graph
Vinony's link graph records 61 inbound references to Jagdgeschwader 103, and connects out to fighter aircraft, Jagdgeschwader 52 and World War II.
Vinony files it under Fighter wings of the Luftwaffe 1933-1945, Military units and formations disestablished in 1945 and Military units and formations established in 1942.
Vinony links it to 7 Wikipedia language editions.