@article{10065, author = {Peter Conti and E. Leep}, title = {Spectroscopic observations of O-type stars.V. The hydrogen lines and lambda 4686 HeII}, year = {1974}, journal = {The Astrophysical Journal}, volume = {193}, pages = {113}, month = {Jan-11-1974}, issn = {0004-637X}, url = {http://adsabs.harvard.edu/full/1974ApJ...193..113C}, doi = {10.1086/153135}, }