diff --git a/CAS/Dumb.hs b/CAS/Dumb.hs
--- a/CAS/Dumb.hs
+++ b/CAS/Dumb.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : GPL v3
 -- 
--- Maintainer  : (@) jsagemue $ uni-koeln.de
+-- Maintainer  : (@) jsag $ hvl.no
 -- Stability   : experimental
 -- Portability : portable
 -- 
diff --git a/CAS/Dumb/Symbols.hs b/CAS/Dumb/Symbols.hs
--- a/CAS/Dumb/Symbols.hs
+++ b/CAS/Dumb/Symbols.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : GPL v3
 -- 
--- Maintainer  : (@) jsagemue $ uni-koeln.de
+-- Maintainer  : (@) jsag $ hvl.no
 -- Stability   : experimental
 -- Portability : portable
 -- 
diff --git a/CAS/Dumb/Symbols/ASCII.hs b/CAS/Dumb/Symbols/ASCII.hs
--- a/CAS/Dumb/Symbols/ASCII.hs
+++ b/CAS/Dumb/Symbols/ASCII.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : GPL v3
 -- 
--- Maintainer  : (@) jsagemue $ uni-koeln.de
+-- Maintainer  : (@) jsag $ hvl.no
 -- Stability   : experimental
 -- Portability : portable
 -- 
@@ -24,7 +24,7 @@
 
 module CAS.Dumb.Symbols.ASCII (
           module CAS.Dumb.Symbols
-        , Symbol, Expression, Pattern
+        , ASCII, Symbol, Expression, Pattern
         -- * “Constant variable” symbols
         -- ** Lowercase letters
         , a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z
diff --git a/CAS/Dumb/Symbols/ASCII/Qualified.hs b/CAS/Dumb/Symbols/ASCII/Qualified.hs
--- a/CAS/Dumb/Symbols/ASCII/Qualified.hs
+++ b/CAS/Dumb/Symbols/ASCII/Qualified.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : GPL v3
 -- 
--- Maintainer  : (@) jsagemue $ uni-koeln.de
+-- Maintainer  : (@) jsag $ hvl.no
 -- Stability   : experimental
 -- Portability : portable
 -- 
diff --git a/CAS/Dumb/Symbols/PatternGenerator.hs b/CAS/Dumb/Symbols/PatternGenerator.hs
--- a/CAS/Dumb/Symbols/PatternGenerator.hs
+++ b/CAS/Dumb/Symbols/PatternGenerator.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : GPL v3
 -- 
--- Maintainer  : (@) jsagemue $ uni-koeln.de
+-- Maintainer  : (@) jsag $ hvl.no
 -- Stability   : experimental
 -- Portability : portable
 -- 
diff --git a/CAS/Dumb/Symbols/Unicode/MathLatin_RomanGreek/Qualified.hs b/CAS/Dumb/Symbols/Unicode/MathLatin_RomanGreek/Qualified.hs
--- a/CAS/Dumb/Symbols/Unicode/MathLatin_RomanGreek/Qualified.hs
+++ b/CAS/Dumb/Symbols/Unicode/MathLatin_RomanGreek/Qualified.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : GPL v3
 -- 
--- Maintainer  : (@) jsagemue $ uni-koeln.de
+-- Maintainer  : (@) jsag $ hvl.no
 -- Stability   : experimental
 -- Portability : portable
 -- 
diff --git a/CAS/Dumb/Symbols/Unicode/MathLatin_RomanGreek__BopomofoGaps.hs b/CAS/Dumb/Symbols/Unicode/MathLatin_RomanGreek__BopomofoGaps.hs
--- a/CAS/Dumb/Symbols/Unicode/MathLatin_RomanGreek__BopomofoGaps.hs
+++ b/CAS/Dumb/Symbols/Unicode/MathLatin_RomanGreek__BopomofoGaps.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : GPL v3
 -- 
--- Maintainer  : (@) jsagemue $ uni-koeln.de
+-- Maintainer  : (@) jsag $ hvl.no
 -- Stability   : experimental
 -- Portability : portable
 -- 
@@ -24,7 +24,7 @@
 
 module CAS.Dumb.Symbols.Unicode.MathLatin_RomanGreek__BopomofoGaps (
           module CAS.Dumb.Symbols
-        , Symbol, Expression, Pattern
+        , Unicode_MathLatin_RomanGreek__BopomofoGaps, Symbol, Expression, Pattern
         -- * “Constant variable” symbols
         -- ** Lowercase letters
         -- $UnicodeMathSymHelp
diff --git a/CAS/Dumb/Tree.hs b/CAS/Dumb/Tree.hs
--- a/CAS/Dumb/Tree.hs
+++ b/CAS/Dumb/Tree.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : GPL v3
 -- 
--- Maintainer  : (@) jsagemue $ uni-koeln.de
+-- Maintainer  : (@) jsag $ hvl.no
 -- Stability   : experimental
 -- Portability : portable
 -- 
diff --git a/CAS/Dumb/Util/These.hs b/CAS/Dumb/Util/These.hs
--- a/CAS/Dumb/Util/These.hs
+++ b/CAS/Dumb/Util/These.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : GPL v3
 -- 
--- Maintainer  : (@) jsagemue $ uni-koeln.de
+-- Maintainer  : (@) jsag $ hvl.no
 -- Stability   : experimental
 -- Portability : portable
 -- 
diff --git a/dumb-cas.cabal b/dumb-cas.cabal
--- a/dumb-cas.cabal
+++ b/dumb-cas.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                dumb-cas
-version:             0.2.0.0
+version:             0.2.1.0
 synopsis:            A computer “algebra” system that knows nothing about algebra, at the core.
 description:         This is a framework for untyped, symbolic computations like a CAS
                      does, without any baked-in rules whatsoever but the ability to
@@ -13,7 +13,7 @@
 license:             GPL-3
 license-file:        LICENSE
 author:              Justus Sagemüller
-maintainer:          (@) jsagemue $ uni-koeln.de
+maintainer:          (@) jsag $ hvl.no
 homepage:            https://github.com/leftaroundabout/dumb-cas
 -- copyright:           
 category:            Math
@@ -32,7 +32,7 @@
   other-modules:       CAS.Dumb.Util.These
                        CAS.Dumb.Symbols.PatternGenerator
   other-extensions:    DeriveFunctor
-  build-depends:       base >=4.8 && <4.14, hashable >=1.2 && <1.3
+  build-depends:       base >=4.8 && <4.14, hashable >=1.2 && <1.4
                      , containers
                      , unordered-containers >=0.2 && <0.3
                      , decimal-literals >= 0.1 && < 0.2
diff --git a/test/tasty/test.hs b/test/tasty/test.hs
--- a/test/tasty/test.hs
+++ b/test/tasty/test.hs
@@ -3,7 +3,7 @@
 -- Copyright   : (c) Justus Sagemüller 2017
 -- License     : GPL v3
 -- 
--- Maintainer  : (@) sagemueller $ geo.uni-koeln.de
+-- Maintainer  : (@) jsag $ hvl.no
 -- Stability   : experimental
 -- Portability : portable
 --