This Agreement may be executed in two or more counterparts, each of which will be deemed to be an original copy of this Agreement, and all of which, when taken together, shall be deemed to constitute one and the same agreement. The exchange of copies of this Agreement and of signature pages by facsimile transmission or electronic mail in .pdf or similar format shall constitute effective execution and delivery of this Agreement as to the parties. For purposes of this Agreement any reference to “written” or “in writing” shall be deemed to include correspondence by signed letter or facsimile or by e-mail.