books/bookvolbib add Martxx and Andr00

  author = "Martin, W.A. and Fateman, R.J.",
  title = "The Macsyma System",

  author = "Andrews, George E. and Knopfmacher, Arnold and Paule, Peter
            and Zimmermann, Burkhard",
+  title = "Engel Expansions of q-Series by Computer Algebra",