TY - BOOK AU - Duggal Krishan L AU - Sahin Bayram TI - Differential geometry of lightlike submanifolds SN - 978-3-0346-0250-1 U1 - 516.373 PY - 2010/// CY - Basel PB - Birkhauser Verlag KW - Global differential geometry KW - Mathematical physics KW - Riemannian manifolds KW - Submanifolds ER -