TY  - JOUR
PY  - 1988//
TI  - Agonistic versus amicable targets of attack and defense: consequences for the origin, function, and descriptive classification of play-fighting
JO  - Aggressive behavior
A1  - Pellis, SM
SP  - 85
EP  - 104
VL  - 14
IS  - 2
N2  - <p>[Abstract unavailable]</p>
LA  - en
SN  - 0096-140X
UR  - http://dx.doi.org/
ID  - ref1
ER  -