Reference

P.J.G. Neill, J.H. Smith, E.D. Box (1989): Pathogenesis of Sarcocystis falcatula (Apicomplexa: Sarcocystidae) in the budgerigar (Melopsittacus undulatus). IV. Ultrastructure of developing, mature and degeneration sarcocysts – J. Protozool. – 36: 430.