"2004"^^ . . . . . "In the present review we summarize direct and indirect evidence that the massive close binary frequency is very large. We then discuss the binary evolutionary processes and we present a general massive close binary evolutionary scheme. Finally, we highlight the importance of massive close binaries for population number synthesis and the chemical evolution of galaxies."@en . "\u00A9 EAS, EDP Sciences, 2004" . . . . . "eas13007" . . . "2004"^^ . . "Massive close binaries"@en . . "EAS, EDP Sciences" . . . .