diff --git a/lib/algebra.gd b/lib/algebra.gd
index 981900b57d1..0a2106306e3 100644
--- a/lib/algebra.gd
+++ b/lib/algebra.gd
@@ -1664,7 +1664,7 @@ DeclareGlobalFunction( "AlgebraByStructureConstants" );
 ##  that describes the unique multiplicative identity element of the returned
 ##  algebra w. r. t. the defining basis of this algebra,
 ##  and that the returned algebra is an algebra-with-one
-##  (see <Ref Filt="IsAlgebraWithOne"/>).
+##  (see <Ref Func="IsAlgebraWithOne"/>).
 ##  <P/>
 ##  <Example><![CDATA[
 ##  gap> A:= GF(2)^[2,2];;
diff --git a/lib/ctbl.gd b/lib/ctbl.gd
index da094d4fc7e..4b940a6bc05 100644
--- a/lib/ctbl.gd
+++ b/lib/ctbl.gd
@@ -2790,7 +2790,7 @@ DeclareGlobalFunction( "IsClassFusionOfNormalSubgroup" );
 ##  <P/>
 ##  For each <M>2</M>-modular Brauer characters where these conditions are
 ##  not sufficient to determine the indicator, an unknown value
-##  (see <Ref Oper="Unknown"/>) is returned.
+##  (see <Ref Func="Unknown"/>) is returned.
 ##  </Description>
 ##  </ManSection>
 ##  <#/GAPDoc>
diff --git a/lib/matrix.gd b/lib/matrix.gd
index 5717ed1f9e3..21f68c72727 100644
--- a/lib/matrix.gd
+++ b/lib/matrix.gd
@@ -1670,7 +1670,7 @@ DeclareGlobalFunction( "PermutationMat" );
 ##  If only <A>vector</A> is given then it is used to compute a default for
 ##  <A>R</A>.
 ##  <P/>
-##  If the <Ref Attr="ConstructingFilter" Label="for a matrix object"/> value
+##  If the <Ref Filt="ConstructingFilter" Label="for a matrix object"/> value
 ##  of the result implies <Ref Filt="IsCopyable"/> then the result is
 ##  fully mutable.
 ##  <P/>