1.1 --- a/doc/min_cost_flow.dox	Sat Mar 16 14:11:32 2013 +0100
     1.2 +++ b/doc/min_cost_flow.dox	Mon Mar 18 17:41:19 2013 +0100
     1.3 @@ -26,7 +26,7 @@
     1.4  The \e minimum \e cost \e flow \e problem is to find a feasible flow of
     1.5  minimum total cost from a set of supply nodes to a set of demand nodes
     1.6  in a network with capacity constraints (lower and upper bounds)
     1.7 -and arc costs \ref amo93networkflows.
     1.8 +and arc costs \cite amo93networkflows.
     1.9  
    1.10  Formally, let \f$G=(V,A)\f$ be a digraph, \f$lower: A\rightarrow\mathbf{R}\f$,
    1.11  \f$upper: A\rightarrow\mathbf{R}\cup\{+\infty\}\f$ denote the lower and