@article{SM_2012_203_10_a1,
     author = {S. B. Gashkov and I. S. Sergeev},
     title = {A method for deriving lower bounds for the complexity of monotone arithmetic circuits computing real polynomials},
     journal = {Sbornik. Mathematics},
     pages = {1411--1447},
     year = {2012},
     volume = {203},
     number = {10},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2012_203_10_a1/}
}