Jean-Francois Lestrade, Robert B. Phillips, Mark W. Hodges, Robert A. Preston. VLBI astrometric identification of the radio emitting region in Algol and determination of the orientation of the close binary. „The Astrophysical Journal”. 410, s. 808, 1993. DOI: 10.1086/172798. ISSN0004-637X. Bibcode: 1993ApJ...410..808L. (ang.).
Jean-Francois Lestrade, Robert B. Phillips, Mark W. Hodges, Robert A. Preston. VLBI astrometric identification of the radio emitting region in Algol and determination of the orientation of the close binary. „The Astrophysical Journal”. 410, s. 808, 1993. DOI: 10.1086/172798. ISSN0004-637X. Bibcode: 1993ApJ...410..808L. (ang.).
Jean-Francois Lestrade, Robert B. Phillips, Mark W. Hodges, Robert A. Preston. VLBI astrometric identification of the radio emitting region in Algol and determination of the orientation of the close binary. „The Astrophysical Journal”. 410, s. 808, 1993. DOI: 10.1086/172798. ISSN0004-637X. Bibcode: 1993ApJ...410..808L. (ang.).