Regesta diplomatica nec non epistolaria Bohemiae et Moraviae.
Pars 6, - (1355-1358).
1954, SPN

Regesta diplomatica nec non epistolaria Bohemiae et Moraviae.
Pars 7, - (1358-1363).
1954, Československá akademie věd

A Note on the Galactic Orbits of Globular Clusters
The Potential and Attractive Force of the Nonhomogeneous Spheroid with Gaussian Distribution of Mass and its Applicability to the Galaxy
Luboš Perek
1954, Masarykova univerzita, Přírodovědecká fakulta