diff --git a/doc/groups.dox b/doc/groups.dox
--- a/doc/groups.dox
+++ b/doc/groups.dox
@@ -316,7 +316,8 @@
 \brief Common graph search algorithms.
 
 This group contains the common graph search algorithms, namely
-\e breadth-first \e search (BFS) and \e depth-first \e search (DFS).
+\e breadth-first \e search (BFS) and \e depth-first \e search (DFS)
+\ref clrs01algorithms.
 */
 
 /**
@@ -324,7 +325,8 @@
 @ingroup algs
 \brief Algorithms for finding shortest paths.
 
-This group contains the algorithms for finding shortest paths in digraphs.
+This group contains the algorithms for finding shortest paths in digraphs
+\ref clrs01algorithms.
 
  - \ref Dijkstra algorithm for finding shortest paths from a source node
    when all arc lengths are non-negative.
@@ -346,7 +348,7 @@
 \brief Algorithms for finding minimum cost spanning trees and arborescences.
 
 This group contains the algorithms for finding minimum cost spanning
-trees and arborescences.
+trees and arborescences \ref clrs01algorithms.
 */
 
 /**
@@ -355,7 +357,7 @@
 \brief Algorithms for finding maximum flows.
 
 This group contains the algorithms for finding maximum flows and
-feasible circulations.
+feasible circulations \ref clrs01algorithms, \ref amo93networkflows.
 
 The \e maximum \e flow \e problem is to find a flow of maximum value between
 a single source and a single target. Formally, there is a \f$G=(V,A)\f$
@@ -370,12 +372,16 @@
 \f[ 0 \leq f(uv) \leq cap(uv) \quad \forall uv\in A \f]
 
 LEMON contains several algorithms for solving maximum flow problems:
-- \ref EdmondsKarp Edmonds-Karp algorithm.
-- \ref Preflow Goldberg-Tarjan's preflow push-relabel algorithm.
-- \ref DinitzSleatorTarjan Dinitz's blocking flow algorithm with dynamic trees.
-- \ref GoldbergTarjan Preflow push-relabel algorithm with dynamic trees.
+- \ref EdmondsKarp Edmonds-Karp algorithm
+  \ref edmondskarp72theoretical.
+- \ref Preflow Goldberg-Tarjan's preflow push-relabel algorithm
+  \ref goldberg88newapproach.
+- \ref DinitzSleatorTarjan Dinitz's blocking flow algorithm with dynamic trees
+  \ref dinic70algorithm, \ref sleator83dynamic.
+- \ref GoldbergTarjan !Preflow push-relabel algorithm with dynamic trees
+  \ref goldberg88newapproach, \ref sleator83dynamic.
 
-In most cases the \ref Preflow "Preflow" algorithm provides the
+In most cases the \ref Preflow algorithm provides the
 fastest method for computing a maximum flow. All implementations
 also provide functions to query the minimum cut, which is the dual
 problem of maximum flow.
@@ -393,18 +399,22 @@
 \brief Algorithms for finding minimum cost flows and circulations.
 
 This group contains the algorithms for finding minimum cost flows and
-circulations. For more information about this problem and its dual
-solution see \ref min_cost_flow "Minimum Cost Flow Problem".
+circulations \ref amo93networkflows. For more information about this
+problem and its dual solution, see \ref min_cost_flow
+"Minimum Cost Flow Problem".
 
 LEMON contains several algorithms for this problem.
  - \ref NetworkSimplex Primal Network Simplex algorithm with various
-   pivot strategies.
+   pivot strategies \ref dantzig63linearprog, \ref kellyoneill91netsimplex.
  - \ref CostScaling Push-Relabel and Augment-Relabel algorithms based on
-   cost scaling.
+   cost scaling \ref goldberg90approximation, \ref goldberg97efficient,
+   \ref bunnagel98efficient.
  - \ref CapacityScaling Successive Shortest %Path algorithm with optional
-   capacity scaling.
- - \ref CancelAndTighten The Cancel and Tighten algorithm.
- - \ref CycleCanceling Cycle-Canceling algorithms.
+   capacity scaling \ref edmondskarp72theoretical.
+ - \ref CancelAndTighten The Cancel and Tighten algorithm
+   \ref goldberg89cyclecanceling.
+ - \ref CycleCanceling Cycle-Canceling algorithms
+   \ref klein67primal, \ref goldberg89cyclecanceling.
 
 In general NetworkSimplex is the most efficient implementation,
 but in special cases other algorithms could be faster.
@@ -534,13 +544,16 @@
 */
 
 /**
-@defgroup lp_group Lp and Mip Solvers
+@defgroup lp_group LP and MIP Solvers
 @ingroup gen_opt_group
-\brief Lp and Mip solver interfaces for LEMON.
+\brief LP and MIP solver interfaces for LEMON.
 
-This group contains Lp and Mip solver interfaces for LEMON. The
-various LP solvers could be used in the same manner with this
-interface.
+This group contains LP and MIP solver interfaces for LEMON.
+Various LP solvers could be used in the same manner with this
+high-level interface.
+
+The currently supported solvers are \ref glpk, \ref clp, \ref cbc,
+\ref cplex, \ref soplex.
 */
 
 /**