<PAGE>
PAGE 19 OF ___ PAGES
EXHIBIT A
AGREEMENT DATED DECEMBER 5, 2000
Re: Joint Filing of Schedule 13D
The undersigned hereby agree that:
(i) each of them is individually eligible to use Amendment No. 1
to the Schedule 13D attached hereto;
(ii) the attached Amendment No. 1 to the Schedule 13D is filed on
behalf of each of them; and
(iii) each of them is responsible for the timely filing of such
Amendment No. 1 to the Schedule 13D and any amendments thereto, and for the
completeness and accuracy of the information therein concerning him or
itself; but none of them is responsible for the completeness or accuracy of
the information concerning the other persons making the filing, unless he or
it knows or has reason to believe that such information is inaccurate.
CITIGROUP INC.
By: /s/ Joseph B. Wollard
--------------------------------------
Name: Joseph B. Wollard
Title: Assistant Secretary
CITIGROUP HOLDINGS COMPANY
By: /s/ Kenneth Cohen
--------------------------------------
Name: Kenneth Cohen
Title: Assistant Secretary
CITICORP
By: /s/ Joseph B. Wollard
--------------------------------------
Name: Joseph B. Wollard
Title: Assistant Secretary
<PAGE>
PAGE 20 OF ___ PAGES
CITIBANK, N.A.
By: /s/ Joseph B. Wollard
--------------------------------------
Name: Joseph B. Wollard
Title: Assistant Secretary
CITICORP VENTURE CAPITAL, LTD.
By: /s/ Anthony P. Mirra
-------------------------------------
Name: Anthony P. Mirra
Title: Vice President
CITICORP BANKING CORPORATION
By: /s/ William Wolf
-------------------------------------
Name: William Wolf
Title: Senior Vice President
COURT SQUARE CAPITAL LIMITED
By: /s/ Anthony P. Mirra
--------------------------------------
Name: Anthony P. Mirra
Title: Vice President
