1. Research in collective risk theory: I;Arfwedson;Skand. Aktuar.,1954
2. Research in collective risk theory: II;Arfwedson;Skand. Aktuar.,1955
3. Some actuarial aspects of non-life insurance company management;Beard;Het Verzekerings Archief,1965
4. Putting computers on to actuarial work;Benjamin;J. Inst. Actuar.,1966
5. Una generalización de la teoria del riesgo colectivo;Borch;An. Inst. Actuar. Españoles,1965