diff --git a/src/explicit.rs b/src/explicit.rs
index a5e1d86..a34f974 100644
--- a/src/explicit.rs
+++ b/src/explicit.rs
@@ -164,7 +164,7 @@ impl<A, D> RK4Buffer<A, D>
     }
 }
 
-impl<A, S, D, F> TimeEvolutionBuffered<S, D, RK4Buffer<A, D>> for RK4<F, F::Time>
+impl<A, S, D, F> TimeEvolutionBufferedBase<S, D, RK4Buffer<A, D>> for RK4<F, F::Time>
     where A: Scalar,
           S: DataMut<Elem = A>,
           D: Dimension,
@@ -172,7 +172,6 @@ impl<A, S, D, F> TimeEvolutionBuffered<S, D, RK4Buffer<A, D>> for RK4<F, F::Time
 {
     type Scalar = F::Scalar;
 
-
     fn iterate_buf<'a>(&self,
                        mut x: &'a mut ArrayBase<S, D>,
                        mut buf: &mut RK4Buffer<A, D>)
diff --git a/src/traits.rs b/src/traits.rs
index 967141a..162c2e4 100644
--- a/src/traits.rs
+++ b/src/traits.rs
@@ -55,7 +55,7 @@ pub trait TimeEvolution<A, D>
 }
 
 /// Time-evolution operator with buffer
-pub trait TimeEvolutionBuffered<S, D, Buffer>: ModelSize<D> + TimeStep
+pub trait TimeEvolutionBufferedBase<S, D, Buffer>: ModelSize<D> + TimeStep
     where S: DataMut,
           D: Dimension
 {
@@ -63,3 +63,12 @@ pub trait TimeEvolutionBuffered<S, D, Buffer>: ModelSize<D> + TimeStep
     /// calculate next step
     fn iterate_buf<'a>(&self, &'a mut ArrayBase<S, D>, &mut Buffer) -> &'a mut ArrayBase<S, D>;
 }
+
+pub trait TimeEvolutionBuffered<A, D, Buffer>
+    : TimeEvolutionBufferedBase<OwnedRepr<A>, D, Buffer, Scalar = A, Time = A::Real>
+    + TimeEvolutionBufferedBase<OwnedRcRepr<A>, D, Buffer, Scalar = A, Time = A::Real>
+    + for<'a> TimeEvolutionBufferedBase<ViewRepr<&'a mut A>, D, Buffer, Scalar = A, Time = A::Real>
+    where A: Scalar,
+          D: Dimension
+{
+}