"Structural features of LPPG and related compounds isolated from Trypanosoma cruzi trypomastigotes." (1994) Casal, O.L.; Zingales, B.; Colli, W. Brazilian journal of medical and biological research = Revista brasileira de pesquisas médicas e biológicas / Sociedade Brasileira de Biofísica ... [et al.]. 27(2):227-231