. "eclipsing binary" . "Algol" . . "EA/SD" . "Algol type" . . . . "Algol-type" . "Algol-type binaries" . "Algol-type eclipsing binary" . . "\u03B2 Per" . "Algol variable" . "(Algol-type)" . . "Algol (detached)" . "Algol type eclipsing variable" . "EA" . "Algol-like variation" . "Algol eclipsing binary" . "Algol-type variable" . "Algol variable" . "Algol-like eclipsing binary" . .