KLEMPERER, O Influence of space charge on thermionic emission velocities. [electronic resource] - Proceedings of the Royal Society of London. Series A, Mathematical and physical sciences Aug 1947 - 376-93 p. digital Publication Type: Journal Article ISSN: 0950-1207 Standard No.: 10.1098/rspa.1947.0082 doi Subjects--Topical Terms: Electrons