Helder Coelho
发表
Helder Coelho,
José Carlos Cotta,
Helder Coelho,
1988,
Symbolic Computation.
Luís Moniz Pereira,
Helder Coelho,
José Carlos Cotta,
1982
.
Helder Coelho,
Helder Coelho,
2005,
J. Artif. Soc. Soc. Simul..