1. Instability of a simply supported square plate with a reinforced circular hole in edge compression;Levey;J. Res. Natl. Bureau Standards,1947
2. Elastic stability of the square plate with a central circular hole under edge thrust;Kumai,1951
3. Elastic stability of pierced square plates;Schlack;Exp. Mech.,1964
4. Experimental critical loads for perforated square plates;Schlack,1968
5. Instability of plates with holes (first report);Yoshiki,1967