@Article{,
title = {Some new viewpoints in differential geometry in the large},
journal = {Bulletin of the American Mathematical Society},
author = {Chern, Shiing-Shen},
year = {1946},
volume = {52},
pages = {1{\textendash}30},
url = {http://www.ams.org/journals/bull/1946-52-01/S0002-9904-1946-08487-6}
}