Vekua's Method for Solving the Equation ... and a Cauchy Problem for an Ultrahyperbolic Equation
Characterizations of Spherical in Euclidean n-Space
On the Space of Matrices fi (A)
On |V,λ| Summability of A Factored Fourier Series
On |C,1| Summability Factors of Fourier Series
A Numerical Integration of the Lunar Orbit
Observations Des Taches Solaires en 1973
On The Geometry of Motion In The Euclidean n-Space