@article{10_1007_s10492_010_0009_5,
     author = {Mukhopadhyay, Banibrata and Bhattacharyya, Rakhi},
     title = {Modeling the role of constant and time varying recycling delay on an ecological food chain},
     journal = {Applications of Mathematics},
     pages = {221--240},
     publisher = {mathdoc},
     volume = {55},
     number = {3},
     year = {2010},
     doi = {10.1007/s10492-010-0009-5},
     mrnumber = {2657835},
     zbl = {1224.34270},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-010-0009-5/}
}