M. Gadella and P. Kielanowski: Eigenfunction expansions and Lippmann-Schwinger formulasP. Kurasov and M. Enerback: Aharonov-Bohm ring touching a quantum wire: how to model it and to solve the inverse problemL. S. Cirio, C. Pagani and A. Zampini: The quantum Cartan algebra associated to a...