ERCAN, S. 2004. Torsion free groups with every proper homomorphic image an N1 group. Algebra Discrete Math. , no.2 , 56-58.

ERCAN, S., (2004). Torsion free groups with every proper homomorphic image an N1 group. Algebra Discrete Math. , no.2, 56-58.

ERCAN, SELAMİ. "Torsion free groups with every proper homomorphic image an N1 group," Algebra Discrete Math. , no.2, 56-58, 2004

ERCAN, SELAMİ. "Torsion free groups with every proper homomorphic image an N1 group." Algebra Discrete Math. , no.2, pp.56-58, 2004

ERCAN, S. (2004) . "Torsion free groups with every proper homomorphic image an N1 group." Algebra Discrete Math. , no.2, pp.56-58.

@article{article, author={SELAMİ ERCAN}, title={Torsion free groups with every proper homomorphic image an N1 group}, journal={Algebra Discrete Math.}, year=2004, pages={56-58} }