By Csikszentmihalyi, Mihaly
By Ridley, Matt
By Katz, Jack
By Biswas-Diener, Robert
By Morandi, Antonio, Nambi, A.N.Narayanan
By Roffey, Sue
By Efklides, Anastasia, Moraitou, Despina
By Stelter, Reinhard
By Águeda Marujo, Helena, Neto, Luis Miguel
By Kim-Prieto, Chu
By Castro Solano, Alejandro
By Tatzel, Miriam
By Cotton Bronk, Kendall
By Delle Fave, Antonella, Massimini, Fausto, Bassi, Marta
By Korunka, Christian, Hoonakker, Peter
By Fava, Giovanni Andrea, Ruini, Chiara
By Rojas, Mariano
By Marchant-Forde, Jeremy N.
By Morina, Nexhmedin, Nickerson, Angela
By Brockmann, Hilke, Delhey, Jan
By Estes, Richard J., Sirgy, M. Joseph
By Cabrera, Natasha J., Leyendecker, Birgit
By Dimitrova, Radosveta
By Michalos, Alex C.
By Proctor, Carmel
By Rees, Gwyther
By Chernetsov, Nikita
By Morris, Desmond
By Zevnik, Luka
By Bain, Alan, Drengenberg, Nicholas