Johannes Blümlein, Abilio De Freitas, Clemens Raab, K. Schönwald,
"The O(alpha^2) initial state QED corrections to e+e- annihilation to a neutral vector boson revisited"
, in Physics Letters B, Vol. 791, Seite(n) 206-209, 2019, ISSN: 0370-2693
Original Titel:
The O(alpha^2) initial state QED corrections to e+e- annihilation to a neutral vector boson revisited