Sérgio R. M. Pellegrino,  Haroldo Pereira Nascimento,  Daniel B. M. Barbosa. 

This work presents a study about collision detection, where the principal focus is to investigate the problem of multiples interactions in multiples faces of the same object. The goal is to find an efficient method to solve this kind of situation.

http://www.lbd.dcc.ufmg.br/colecoes/wrv/2000/0031.pdf

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