On ramifications of Artin-Schreier extensions of surfaces over algebraically closed fields of positive characteristic I. - Masao Oi (JSIAM Lett., 2014)

"S × UKILAM" Collaboration to Connect Local Digital Resources and School Education: Workshop and Archiving to Construct Network of "People" and "Data". - Masao Oi; Boyoung Kim; Hidenori Watanave (ICADL, 2022)