Lelyakov OP, Karpenko AS, Babadzhan R-DO. Scalar-Field Potential Distribution for a Closed “Thick” Null String Moving in the Plane z = 0. Ukr. J. Phys. [Internet]. 2018 Oct. 23 [cited 2024 Nov. 22];59(5):547. Available from: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018481