Rozhansky had a strong interest in high-frequency electromagnetic oscillations, and influenced Slutskin to begin research in this area. The earlier work on magnetrons by Albert Hull (American), August Žáček (Czech), and Erich Habann (German) was studied and improved, resulting in devices generating oscillations with wavelengths between 300 and 40 cm., (It is noted that Shteinberg was the supervisor of the research unit, and, by custom, his name was added as such.) During 1928-1930, Slutskin studied in Germany under Heinrich Barkhausen at the Dresden Technische Hochschule. While there, he published another important paper on magnetrons in Annalen der Physik, a highly respected and widely read German journal.