Complex sentence: Symphonies No.2 (attributed to Leopold Mozart) and 3 (written by Carl Friedrich Abel) are spurious and thus not included here; spurious symphonies can be found at Mozart symphonies of spurious or doubtful authenticity.
Split into simpler sentences: Symphonies No.2 (attributed to Leopold Mozart) and 3 (written by Carl Friedrich Abel) are spurious. Spurious symphonies can be found at Mozart symphonies of spurious or doubtful authenticity.