| (1)-4 | Summaries of articles published in this issue. |
| 463-492 | Exponentially stable integral manifolds, averaging principle and continuous dependence on a parameter. [Continuation]. Kurzweil, Jaroslav |
| 493-517 | Spektrale Eigenschaften der ${\Cal K}$-positiven Operatoren und Einschlie{\ss}ungssätze für den Spektralradius. Marek, Ivo |
| 518-544 | Extension of the averaging method to stochastic equations. Vrkoč, Ivo |
| 545-551 | Sur un théorème de Vl. Dlab. Pic, Gheorghe |
| 552-599 | Cartan's method of specialization of frames. Švec, Alois |
| 600-623 | Title: Solution in large of control problem $\dot x=(A(1-u)+Bu)x$. Kučera, Jan |
| 624-626 | News and Notices. Professor Vlastimil Pták awarded the 1966 State prize. |