cx a22 3 45 146502590 http://www.idref.fr/146502590 20100908 20200404054348.000 751052114 751062213 Tp5 0000000048463590 ISNI VIAF 20200401 http://viaf.org/viaf/22700201 VIAF VIAF 20200401 20100908afrey50 ba0 eng XX 1951 0 1 0 ua AFNOR ba0yba0y 0 Janssen Ronald 1951-.... FR Abes 20200404 AFNOR Proceedings, Symposium 'Molluscan Palaeontology', 11th International Malacological Congress, Siena, Italy, 30th August-5th September 1992 / A. W. Janssen & R. Janssen, editors, 1993 http://authorities.loc.gov/, site consulté le 2010-10-06 date de naissance (1951) et prénom (Ronald) Janssen, Ronald (1951-....)