On coupling constant thresholds and related eigenvalue properties of Dirac operators. M. Klaus — 1985 Journal für die reine und angewandte Mathematik
Some remarks on double-wells in one and three dimensions M. Klaus — 1981 Annales de l'I.H.P. Physique théorique
On - d 2 d x 2 + V where V has infinitely many “bumps” M. Klaus — 1983 Annales de l'I.H.P. Physique théorique
Binding of Schrödinger particles through conspiracy of potential wells M. Klaus; B. Simon — 1979 Annales de l'I.H.P. Physique théorique
On the double-well problem for Dirac operators Evans M. Harrell; M. Klaus — 1983 Annales de l'I.H.P. Physique théorique
Computing homomorphism spaces between modules over finite dimensional algebras. Lux, Klaus M.; Szőke, Magdolna — 2003 Experimental Mathematics