![13 13](https://publikace.nm.cz/en/file/6b5f8d8e23a61b1364bb6e884099516b/21908/publicationdetail/1968-1969a.jpg)
1969/13/
ISSN : 0036-5351
Editor in Chief : Mojmír Otruba
Editor in Chief : Mojmír Otruba