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 - 99 IS - 6 SP - 1165 EP - 1166 PY - 1990 DO - 10.24471/shigaku.99.6_1165 ER -