1. Solvable Models in Quantum Mechanics;Albeverio,2004
2. Singular Perturbations of Differential Operators;Albeverio,1999
3. The generalized point interaction in one dimension
4. On contact interactions as limits of short-range potentials;Bräunlich;Met. Funct. Anal. Top.,2013
5. Quantum Mechanics. Foundations and Applications;Bohm,1994