Nicholas Noack Silvia Lindtner Josef Nguyen Gillian R. Hayes LoRy: a locative story game to encourage playful and social learning. 169-170 2008 IDC http://doi.acm.org/10.1145/1463689.1463749 conf/acmidc/2008 db/conf/acmidc/idc2008.html#NoackLNH08