Coherent phonons in Bi2Se3 induced by a powerful THz pulseAlexey Melnikov, Kirill Boldyrev, Yuri Selivanov, Victor Martovitskii, Sergey Chekalin and Evgeni RyabovEPJ Web Conf., 161 (2017) 01009DOI: https://doi.org/10.1051/epjconf/201716101009