1. Andreoli CV, Lara AI, Fernandes F (1999) Biosolid recycling: turning problems into solutions. SANEPAR, Curitiba; FINEP, Brazil
2. Andreoli CV, Von Sperling, M, Fernandes F (2001a) Sewage sludge: treatment and final disposal. DESA/UFMG, Belo Horizonte; SANEPAR, Brazil, Curitiba
3. Andreoli CV, Sperling MV, Fernandes F (2001b) Principles of biological wastewater treatment. FCO, Brazil, Curitiba
4. Azevedo Netto JM (1977) Sanitary sewage systems. General, sanitary aspects, unitary system, separator system, constituent parts of a sanitary sewer system. In: Sistemas de esgotos sanitários, 2nd edn. CETESB, Brazil, São Paulo
5. Azevedo Netto JM (1984) Chronology of water supply (up to 1970). Revista DAE 44(137):106–111