Photoelectric photometry of SW Lyncis.
Photoelectric photometry of BV 382.
Photometry of V502 Ophiuchi.
S15 Universal photoelectric sensors. April 2008
Advanced photoelectric sensors S62. April 2008
Universal photoelectric sensors S8. April 2008
50 photoelectric circuits and systems.
Northern lights romantic piano pieces /
Northern Spiš by bicycle. /
A northern light /
The northern light : from mythology to space reseaech /
Photoelectric sensors BOS 2K
Photoelectric sensors BOS 5K.
Photographische Photometrie von Sternspektren mit dem Interferenzmikroskop /
Journey for friendship between northern neighbors /
The four colour photometry of globular clusters and the absorption in M 31 /
Period changes of dwarf cepheids, I CY aquarii, EH Librae, DY Pegasy /
The vegetation of railways in northern Bohemia (eastern part) /
Geology and groundwater resources of northern Berks County, Pennsylvania /
Work function, photoelectric treshold and surface states of atomically clean silicion.
Photoelectric UBV photometry of northern cepheids. 2 /