The preliminary issue herein involves defining "similar work" within the meaning of Copeland. Defendants torture the reasoned analysis of the Court of Appeals by asserting: (1) Plaintiffs' ordinary billing practices are probative of the market rate for this "type" of litigation;[33] (2) salaries paid government attorneys for work on this litigation is also probative; (3) a contract between Plaintiff NSB's counsel and the Department of Justice is probative of the market rate; and (4) the listings in the District of Columbia Bar Lawyer Directory for environmental lawyers is also probative.