On the continuous solutions of the Gołąb-Schinzel equation Karol Baron Research Papers Pages: 155 - 162
On some additive mappings in rings with involution M. BrešarJ. Vukman Research Papers Pages: 178 - 185
On continuous preservation of norms and areas C. AlsinaJ. L. Garcia-Roig Research Papers Pages: 211 - 215
On two mean value properties and functional equations associated with them János AczélMarek Kuczma Research Papers Pages: 216 - 235