@article{MET_1980__27_186183,
     author = {G. Pflug},
     title = {Stochastic {Approximation} {Methods} for {Constrained} and {Unconstrained} {Systems}  -  {Kushner,} {HJ.;} {Clark,} {D.S.}},
     journal = {Metrika},
     pages = {71--72},
     publisher = {mathdoc},
     volume = {27},
     year = {1980},
     url = {http://geodesic.mathdoc.fr/item/MET_1980__27_186183/}
}