@article{Essman, author = {Essman, W. B.}, title = {>Free< and motivated behaviour and amine metabolism in isolated mice}, series = {S. Garattini and E. B. Sigg (Eds.), Aggressive Behaviour, Amsterdam (Excerpta Medica Foundation) 1969, pp. 203-208.}, journal = {S. Garattini and E. B. Sigg (Eds.), Aggressive Behaviour, Amsterdam (Excerpta Medica Foundation) 1969, pp. 203-208.}, language = {en} }