definiens: shall mean information that is reasonably accessible to the public in a wr itten publication, and shall not include information that is only available thro ugh research of published literature or information the substance of which mu st be pieced together with substantial effort from a number of different publi cations and sources . A disclosure by either of the parties, as Recipient ( together with its 28 < PAGE > Representatives ), of Confidential Information of th e other party, as Disclosing Party, either ( a ) in response to a valid subpoena o r order by a court or other governmental body, ( b ) as otherwise required by law, or ( c ) as necessary to establish the rights of either party under this Agr eement, shall not be considered to be a breach of this Agreement by such Recipient or a waiver of confidentiality for other purposes ; provided, howev er, that such Recipient or its Representatives shall provide sufficient prior written notice thereof to such Disclosing Party to enable such Disclosing Par ty to seek a protective order or otherwise prevent or limit the extent of such di sclosure, and that such Recipient and its Representatives shall thereafter disclose only such Confidential Information as is reasonably necessary under the circumstances