Plane curves whose singular points are cusps and triple coverings of p2. Hisao Yoshihara — 1989 Manuscripta mathematica
Galois embedding of algebraic variety and its application to abelian surface Hisao Yoshihara — 2007 Rendiconti del Seminario Matematico della Università di Padova
A note on minimal Galois embeddings of abelian surfaces Hisao Yoshihara — 2011 Rendiconti del Seminario Matematico della Università di Padova