TY  - GEN
AU  - Frank, Mark
AU  - Ekman, Paul
AU  - Friesen, Wallace
TI  - Behavioral markers and recognizability of the smile of enjoyment
KW  - Psicologia Social
KW  - 3000 - Psicologia Social
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/r6.htm
ER  -