Screen conformal half-lightlike submanifolds. - Krishan L. Duggal; Bayram Sahin (Int. J. Math. Math. Sci., 2004)

Lightlike Submanifolds of Indefinite Sasakian Manifolds. - Krishan L. Duggal; Bayram Sahin (Int. J. Math. Math. Sci., 2007)

A New Class of Contact Pseudo Framed Manifolds with Applications. - Krishan L. Duggal (Int. J. Math. Math. Sci., 2021)