Complex sentence: In the early 30s, he studied at the Deutsche Technische Hochschule in Brno, Czechoslovakia, were he met other two Romanian communist activists, Valter Roman and Gabriel Mureşan.
Split into simpler sentences: In the early 30s, he studied at the Deutsche Technische Hochschule in Brno, Czechoslovakia. Here he met other two Romanian communist activists, Valter Roman and Gabriel Mureşan.