- Yusuf Alagöz, Yılmaz Durğun, Kemal İzci, “On rings admitting nonzero homomorphisms between non-projective modules”, Communications in Algebra, 51, № 4, 2023,
1614 
- Yasuyuki Hirano, Edward Poon, Hisa Tsutsui, “A Generalization of Complete Reducibility”, Communications in Algebra, 40, № 6, 2012,
1901