On the closed planar homothetic motions and the polar inertia momentums of orbits
On the closed planar homothetic motions and the orbital areas
On the degree of aproximation of a periodic function f almost Riesz- means of its conjugate series
On the second type linear volterra integral equations with convolution kernel
On the periodic solutions of certain class of eighth-order differential equations
Fixed point theorems for some discontinous operators in 2-Metric spaces
The factorization of elements of So(n) in terms of the eulers angles