@article{Gershtein:1969,author = {S. S. Gershtein and V. I. Petrukhin and L. I. Ponomarev and Yu. D. Prokoshkin},title = {Mesoatomic processes and model of large mesic molecules},publisher = {Physics-Uspekhi},year = {1969},journal = {Phys. Usp.},volume = {12},number = {1},pages = {1-19},url = {https://ufn.ru/en/articles/1969/1/a/},doi = {10.1070/PU1969v012n01ABEH003914}}