@article{GDZPPN002360306,
title = {The C*-algebra generated by two projections.},
journal = {Mathematica Scandinavica},
volume = {64},
year = {1989},
pages = {278-290},
zbl = {0717.46048},
url = {http://dml.mathdoc.fr/item/GDZPPN002360306}
}
Sinclair, Allan M.; Raeburn, Iain. The C*-algebra generated by two projections.. Mathematica Scandinavica, Tome 64 (1989) pp. 278-290. http://gdmltest.u-ga.fr/item/GDZPPN002360306/