JOURNAL OF MATHEMATICAL SYSTEMS,
                     ESTIMATION, AND CONTROL

Contributors and readers are reminded that, beginning with Volume
Four, JMSEC begins its transition to a partially electronic
format.  Specifically, after the transition, each issue will
carry a number of four page, extended summaries.  There will in
the future be between 15-20 such summaries per issue.  The FULL
paper will be available only electronically via anonymous ftp.
For access, the full ftp address is required along with the
article identification number which is carried on the first page
of the extended summary.  For the time being, copies of the full
electronic version will be free of charge.  More details are
included in the Editorial in Volume 4#1 or directly from the
publisher, Birkhaeuser Boston, 675 Massachusetts Avenue,
Cambridge, MA 02139.  Also, see e-mail address above.

Volume Four, Number One

Editorial:  A Transition to Electronic Publishing
          Clyde F. Martin

Perspective Problems in System Theory and its Application to
Machine Vision
          Bijoy K. Ghosh, Mrdjan Jankovic and Y.T. Wu

Uniform Stabilization of the Kirchoff Plate Equation with
Boundary Conditions Containing Moments of Inertia
          Mary Ann Horn

A Relation Between Continuous Time-Varying and Discontinuous
Feedback Stabilization
          Jean-Michel Coron and Lionel Rosier

Shift of a Limit-Cycle in biology and Error-Equation
          Daniel Claude

Monotone Approximations for Convex Stochastic Control Problems
          On/'simo Hern/'andez-Lerma and Wolfgang J. Runggaldier

SUMMARY:  Modelling and Controllability of Plate-Beam Systems
          J. E. Lagnese

SUMMARY:  Conditions for Average Optimality in Markov Control
Processes with Unbounded Costs and Controls
          Ra/'ul Montes-de-Oca and On/'esimo Hern/'andez-Lerma

Book Reviews:  Brian F. Doolin

Numerical Methods for Conservation Laws, second edition, by
Randall J. Leveque


Due to a processing error at the publisher's, we omitted in these
two issues of the Journal the specific information required to
order electronic copies of papers whose Summaries have appeared.
That information will be included in future issues but is given
below for those who may have immediate need.

___________________________________________________________
Articles appearing in SUMMARY form are available in COMPLETE form
by anonymous ftp.  Please follow these instructions:

    ADDRESS:     trick.ntp.springer.de
    USER:        anonymous (personal e-mail address)
    ACCESS:      cd jmsec
                 get ID#.ps

The ID # is the five digit identification number of the paper
desired.  It is located at the bottom of the first page of the
Summary and is called "Retrieval Code."