Improving the geometry of manholes designed for separate sewer systems.Published in:Canadian Journal of Civil Engineering, 2019, v. 46, n. 1, p. 13, doi. 10.1139/cjce-2018-0057By:Abbas, Alaa;Ruddock, Felicite;Alkhaddar, Rafid;Rothwell, Glynn;Andoh, RobertPublication type:Article