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EXHIBIT 99
AGREEMENT CONCERNING JOINT FILING
OF SCHEDULE 13D
The undersigned agree as follows:
(i) each of them is individually eligible to use the Schedule 13D to which
this Exhibit is attached, and such Schedule 13D is filed on behalf of each of
them; and
(ii) each of them is responsible for the timely filing of such Schedule
13D and any amendments thereto, and for the completeness and accuracy of the
information concerning such person contained therein; but none of them is
responsible for the completeness or accuracy of the information concerning the
other persons making the filing, unless such person knows or has reason to
believe that such information is inaccurate.
This Agreement may be executed in any number of counterparts, each of
which shall be deemed to be an original, but all of which, taken together, shall
constitute one and the same instrument.
Dated: May 20, 1999
ZS PUBCO I L.P.
By: ZS Pubco I L.L.C., its General Partner
By: /s/ Xxxxxxx X. Xxxxx
_________________________________
Name: Xxxxxxx X. Xxxxx
Title: Manager
ZS PUBCO I L.L.C.
By: /s/ Xxxxxxx X. Xxxxx
_____________________________________
Name: Xxxxxxx X. Xxxxx
Title: Manager
/s/ Xxxxxx X. Xxxxx
_________________________________________
Xxxxxx X. Xxxxx
/s/ Xxxxxxx X. Xxxxx
_________________________________________
Xxxxxxx X. Xxxxx
