On focal surfaces formed by timelike normal rectilinear congruence


Creative Commons License

ÖZDEMİR M., Şimşek H.

COMMUNİCATİONS SERİES A1: MATHEMATİCS AND STATİSTİCS, cilt.65, sa.2, ss.55-64, 2016 (Hakemli Dergi)