who is the the womens doubles with mens doubles being reinhold pum karl buchart and mixed doubles being hermann fröhlich lore voit
CREATE TABLE "past_winners" (
  "year" real,
  "mens_singles" text,
  "womens_singles" text,
  "mens_doubles" text,
  "womens_doubles" text,
  "mixed_doubles" text
);
SELECT "womens_doubles" FROM "past_winners" WHERE "mens_doubles"='Reinhold Pum Karl Buchart' AND "mixed_doubles"='Hermann Fröhlich Lore Voit';