\input zb-basic \input zb-ioport \iteman{io-port 05964592} \itemau{Ramras, Mark; Donovan, Elizabeth} \itemti{The automorphism group of a Johnson graph.} \itemso{SIAM J. Discrete Math. 25, No. 1, 267-270 (2011).} \itemab Summary: Using an analysis of the clique structure and only the most elementary group theory, we determine the automorphism group of the Johnson graph $J(n,i)$, for $n\neq 2i$. Although this is a special case of results of {\it G. Jones} [Eur. J. Comb. 26, No. 3--4, 417--435 (2005; Zbl 1063.05037)], unlike his proof, ours uses no heavy group-theoretic machinery. We make a conjecture for the case $n=2i$. \itemrv{~} \itemcc{} \itemut{Johnson graph; automorphism group; clique} \itemli{doi:10.1137/090765596} \end