Name the partner for opponents of františek čermák michal mertiňák
CREATE TABLE "doubles_29_16_titles_13_runners_up" (
  "outcome" text,
  "date" text,
  "surface" text,
  "partner" text,
  "opponents_in_the_final" text,
  "score_in_the_final" text
);
SELECT "partner" FROM "doubles_29_16_titles_13_runners_up" WHERE "opponents_in_the_final"='františek čermák michal mertiňák';