1. Methoden der Mathematischen Physik
2. Love , A.E.H. 1927.The Mathematical Theory of Elasticity, 4th ed. 496–496.
3. Courant , R. and Hilbert , D.Methoden der mathematischen Physik, 2nd ed. Vol. i, 264–264.
4. Report Aeron. Res. Inst. Tokyo Imp. Univ. no. 70;Sezawa K.,1931
5. The Buckling Load for a rectangular Plate with four Clamped Edges