diff --git a/opm/core/tof/TofDiscGalReorder.hpp b/opm/core/tof/TofDiscGalReorder.hpp
index 59b84efc..a23005fa 100644
--- a/opm/core/tof/TofDiscGalReorder.hpp
+++ b/opm/core/tof/TofDiscGalReorder.hpp
@@ -40,8 +40,8 @@ namespace Opm
     /// (single-phase) time-of-flight using reordering.
     /// The equation solved is:
     ///     \f[v \cdot \nabla\tau = \phi\f]
-    /// where \f$ v \f$ is the fluid velocity, \f$ \tau \f$ is time-of-flight and
-    /// \f$ \phi \f$ is the porosity. This is a boundary value problem, where
+    /// in which \f$ v \f$ is the fluid velocity, \f$ \tau \f$ is time-of-flight and
+    /// \f$ \phi \f$ is the porosity. This is a boundary value problem, and
     /// \f$ \tau \f$ is specified to be zero on all inflow boundaries.
     /// The user may specify the polynomial degree of the basis function space
     /// used, but only degrees 0 and 1 are supported so far.
diff --git a/opm/core/transport/reorder/ReorderSolverInterface.hpp b/opm/core/transport/reorder/ReorderSolverInterface.hpp
index 6c1f682b..38e3f621 100644
--- a/opm/core/transport/reorder/ReorderSolverInterface.hpp
+++ b/opm/core/transport/reorder/ReorderSolverInterface.hpp
@@ -30,7 +30,7 @@ namespace Opm
     /// Interface for implementing reordering solvers.
     /// A subclass must provide the solveSingleCell() and
     /// solveMultiCell methods, and is expected to implement a solve()
-    /// method that will have an interface geared to the its own
+    /// method that will have an interface geared to its own
     /// needs. (The solve() method is therefore not virtual in this
     /// class.) The reorderAndTransport() method is provided as an aid
     /// to implementing solve() in subclasses, together with the