@inproceedings{inproceedings53b6384c, title = {Nonlinear absorption of porphyrins in aqueous solutions. Effect of biomacromolecules}, author = {Borissevitch, Iouri and Maciel, G. S. and Rakov, N. and Araújo, Cid B. de}, year = {1999}, booktitle = {Encontro Latino-Americano de Fotoquímica e Fotobiologia} }