[LETTERHEAD OF WOLTERS KLUWER U.S. CORPORATION]
Bruce C. Lenz
Executive Vice President
Chief Financial Officer
June 10, 1998
Mr. Martin E. Tash
President
Plenum Publishing Corporation
233 Spring Street
New York, New York 10013
Dear Mr. Tash:
In consideration of the execution today of an agreement and plan merger by
and among our wholly owned subsidiary Kluwer Boston, Inc. and Plenum Publishing
Corporation which agreement is intended to result in the acquisition of all the
shares of Plenum Publishing Corporation at 73.50 per share for a total purchase
of approximately $258 million dollars, we hereby agree that we will fund the
obligations of our subsidiary and of PPC Acquisition Corp., our indirect
subsidiary, through available cash balances and existing bank credit lines of
Wolters Kluner nv. We hereby represent and warrant that there are available cash
balances and exiting bank credit lines which will enable us to meet this
obligation.
Yours sincerely,
WOLTERS KLUWER U.S. CORPORATION
By: /s/ Bruce C. Lenz
---------------------------
Bruce C. Lenz
Executive Vice President and
Chief Financial Officer