Do primal instincts explain engagement in location-based games? A hypothesis-forming focus group study on territorial behavior. - Samuli Laato; Bastian Kordyaka; Sampsa Rauti; Sonja Hyrynsalmi; Marianna Hoikkala; Tarja Pietarinen; Teemu D. Laajala; Mauri Paloheimo; Nobufumi Inaba; Sami Hyrynsalmi (GamiFIN, 2020)