Stichting Mathematisch Centrum
Stichting Mathematisch Centrum. Zuivere Wiskunde

Hursch, J. L.& Verbeek Kroonenberg, A. (1970). Connected spaces in which all connected sets containing some fixed point are closed. In Stichting Mathematisch Centrum. Zuivere Wiskunde (WN 30/70). Stichting Mathematisch Centrum.