@article{IM2_1991_36_3_a4,
     author = {A. S. Merkur'ev and A. A. Suslin},
     title = {The group $K_3$ for a field},
     journal = {Izvestiya. Mathematics},
     pages = {541--565},
     year = {1991},
     volume = {36},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1991_36_3_a4/}
}