| 129-132 | On zeros of solutions of the differential equation $y''+f(t,y)g(y')=0$. Bartušek, Miroslav | 
| 133-141 | The distribution of the estimate of entropy and its applications. Michálek, Jaroslav | 
| 143-150 | Geradenkongruenzen im fünfdimensionalen projektiven Raum. Mikolášová, Věra | 
| 151-154 | On prime and principal ideals on graphs. Nieminen, Juhani | 
| 155-170 | Zur Charakterisierung von Graphen mit $p$-hamiltonscher $(p+1)$-ter Potenz im Falle $p=3$. Heinrich, Peter; Schaar, Günter | 
| 171-177 | Contribution to the characterization of the sphere in $E^3$. Svoboda, Karel | 
| 179-184 | A concentration of categories with non-injective monomorphisms. Veselý, Vítězslav |