Who wrote the episode directed by Peter Woeste?
CREATE TABLE "table1_15284274_1" (
  "no_in_season" real,
  "no_disc" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text
);
SELECT "written_by" FROM "table1_15284274_1" WHERE "directed_by"='Peter Woeste';