Positron creation probabilities in low-energy heavy-ion collisionsAndrey I. Bondarev, Ilya I. Tupitsyn, Ilia A. Maltsev, Yury S. Kozhedub and Günter PlunienEur. Phys. J. D, 69 4 (2015) 110DOI: https://doi.org/10.1140/epjd/e2015-50783-6