@inproceedings{Klopot:2013ZC, author = "Klopot, Yaroslav and Oganesian, Armen and Teryaev, Oleg", title = "{Nonperturbative QCD and transition form factors}", doi = "10.22323/1.173.0036", booktitle = "Proceedings of XXI International Baldin Seminar on High Energy Physics Problems {\textemdash} PoS(Baldin ISHEPP XXI)", year = 2013, volume = "173", pages = "036" }