@misc{Du_X._J._Study_2014,
 author={Du, X. J. and Yu, P. and Ma, Y. and Ren, C.},
 copyright={na miejscu},
 howpublished={online},
 year={2014},
 publisher={HARD Publishing Company},
 abstract={od strony: 563},
 title={Study on Clustering Multi-Model Modeling Method for Activated Sludge Process},
 type={artykuł z czasopisma},
}