Understanding fusion suppression and enhancement in the `ANTPOT.18 O´ + `ANTPOT.58,60,64 Ni´ systems - Pereira, Dirceu; Silva, Cely Paula da; Lubian, J; Rossi Junior, Ernesto Silvio; Chamon, Luiz Carlos; Nobre, Gustavo Pires de Almeida; Correa, T (Nuclear Physics A, 2009)