@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/