Provider: Japan Science and Technology Agency Database: J-STAGE Content:text/plain; charset="utf-8" TY - JOUR TI - title_in_Japanese TI - AU - author_in_Japanese JO - SHIGAKU ZASSHI VL - 102 IS - 8 SP - 1567 EP - 1568 PY - 1993 DO - 10.24471/shigaku.102.8_1567 ER -