On weakly symmetric and weakly Ricci-symmetric K -contant manifolds. De, U.C.; Binh, T.Q.; Shaikh, A.A. — 2000 Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
On partially pseudo symmetric K -contact Riemannian manifolds. Binh, T.Q.; De, U.C.; Tamássy, L. — 2002 Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
On weak symmetries of Kähler manifolds. Tamássy, L.; De, U.C.; Binh, T.Q. — 2000 Balkan Journal of Geometry and its Applications (BJGA)
Some remarks on almost Kenmotsu manifolds. Binh, T.Q.; Tamássy, L.; De, U.C.; Tarafdar, M. — 2002 Mathematica Pannonica