@article{MM_2003_15_12_a7,
     author = {V. Plekhanova},
     title = {Co-operative learning in cognitive systems},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {109--117},
     publisher = {mathdoc},
     volume = {15},
     number = {12},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MM_2003_15_12_a7/}
}