1998/53/3-4
On the distribution of primitive roots modulo $p$
Wenpeng Zhang
Normal contact CR-submanifolds of a quasi-Sasakian manifold
Constantin Călin
Bäcklund transformations of $n$-dimensional constant torsion curves
S. Z. Németh
On the Ramanujan differences
Zoltán Daróczy and Gabriella Hajdu
On the geometry of curves in Finsler manifolds
Aurel Bejancu and Sharief Deshmukh
Classes of uniformly starlike functions
K. G. Subramanian, T. V. Sudharsan, P. Balasubrahmanyam and H. Silverman
On a system of norm-equations over cyclic cubic number fields
Attila Pethő and Horst G. Zimmer
On the Schnirelmann density of sumsets
Pál Hegedűs, Gábor Piroska and Imre Z. Ruzsa
On the direct decomposition of Pappian projective Veldkamp planes
Kálmán Péntek
Projective modules over twisted group algebras of $p$-solvable groups
Andrei Marcus
On the power values of polynomials
A. Bérczes, B. Brindza and L. Hajdu
On automorphism groups of simple arguesian lattices
E. T. Schmidt
Curvature homogeneous unit tangent sphere bundles
E. Boeckx and L. Vanhecke
On the uniqueness problem for continuous convolution semigroups of probability measures on simply connected nilpotent Lie groups
Daniel Neuenschwander
On Finsler spaces of Douglas type. II. Projectively flat spaces
S. Bácsó and M. Matsumoto