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2. Bijlaard , P. P. Theory of plastic deformation and its relation with negative gravity anomalies, oceanic trenches, geosynclines, volcanism, orogeny and the west Pacific Ocean 1936
3. A theory of plastic buckling with its application to geophysics;Bijlaard;Proc. Kon. Ned. Akad. Wetensch.,1938
4. On the linear patterns of the earth's crust;Bijlaard;Proc. Kon. Ned. Akad. Wetensch.,1948
5. Theory and tests on the plastic stability of plates and shells;Bijlaard;J. Aeronaut. Sci.,1949