19 maps of the Small Magellanic Clouds presenting the Harvard variables found by Miss
Leavitt
LCA n89613911 [en ligne : 2011-11-23]
Moving envelopes of stars / V.V. Sobolev, translated by Sergei I. Gaposchkin, in collaboration
with Cecilia H. P. Gaposchkin and Jane A. Connell, 1960