KINEMATICALLY COMPLETE EXPERIMENTAL STUDY OF COMPTON SCATTERING AT HELIUM ATOMS NEAR THE THRESHOLD Статья Kircher M., Trinter F., Grundmann S., Vela-Perez I., Brennecke S., Eicke N., Rist J., Eckart S., Houamer S., Chuluunbaatar O., Popov Y.V., Volobuev I.P., Bagschik K., Piancastelli M.N., Lein M., Jahnke T., Schöffler M.S., Dörner R. Nature Physics. Nature Research. Том 16. 2020. С. 756-760