Acoustic detection of neutrinos in bedrock Wladyslaw Henryk Trzaska, Kai Loo, Timo Enqvist, Jari Joutsenvaara, Pasi Kuusiniemi and Maciej Slupecki EPJ Web Conf., 216 (2019) 04009 Published online: 24 September 2019 DOI: 10.1051/epjconf/201921604009