-------------------- CUSIP No. 12232C108 13G Page 7 of 8 Pages ------------------------ -------------------- EXHIBIT 1 TO SCHEDULE 13G February 14, 1997 MORGAN STANLEY GROUP INC. and MORGAN STANLEY ASSET MANAGEMENT INC., hereby agree that, unless...

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CUSIP No.   ▇▇▇▇▇▇▇▇▇               13G                    Page  7 of  8 Pages
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                           EXHIBIT 1 TO SCHEDULE 13G


                               February 14, 1997



             ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ GROUP INC. and ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ ASSET MANAGEMENT INC.,
     hereby agree that, unless differentiated, this Schedule 13G is filed on
     behalf of each of the parties.



     ▇▇▇▇▇▇  ▇▇▇▇▇▇▇  ASSET  MANAGEMENT  INC.

BY: /s/ ▇▇▇▇▇ ▇. ▇▇▇▇▇▇
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     ▇▇▇▇▇  ▇.  ▇▇▇▇▇▇  /  Vice Chairman




     ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ GROUP INC.

BY: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇
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     ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇/Vice President ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ & Co. Incorporated