Search for molecular bremsstrahlung radiation signals in Ku band with coincidental operations of radio telescopes with air shower detectorsShoichi Ogio, Tokonatsu Yamamoto, Kazuyuki Kuramoto, Takashi Iijima, Hidetoshi Akimune, Toshihiro Fujii, Nobuyuki Sakurai, Masaki Fukushima and Hiroyuki SagawaEPJ Web of Conferences, 53 (2013) 08007DOI: https://doi.org/10.1051/epjconf/20135308007