@article{articlecae71399, title = {Search for point-like sources of ultra-high energy neutrinos at the Pierre Auger observatory and improved limit on the diffuse flux of tau neutrinos}, author = {Abreu, P and Albuquerque, Ivone Freire da Mota e and Souza, Vitor de and Gouffon, Philippe and Peixoto, C J Todero and Tridapalli, D B}, year = {2012}, doi = {10.1088/2041-8205/755/1/L4}, journal = {Astrophysical Journal Letters} }