I. Western participants:

                          1
  1) family name                Balabane
  2) given name                 Mikhael
  3) degree, title              Docter, Professor
  4) affiliation                Universite Paris 13
  5) position                   Professor
  6) mailing address            Dept de Math., Inst.Galilee,
                                Av.J.B.Clement,93430,
                                Villetaneuse,France
  7) e-mail address             balabane@math.univ-paris13.fr
  8) phone number               16 1 49 40 35 80
  9) FAX number                 16 1 49 40 35 68

                          2

  1) family name                Cuvelier
  2) given name(s)              Francois
  3) degree, title(s)           Docter
  4) affiliation                Universite Paris 13
  5) position                   Maitre de conference
  6) mailing address            Dept de Math., Inst.Galilee,
                                Av.J.B.Clement,93430,
                                Villetaneuse,France
  7) e-mail address             cuvelier@math.univ-paris13.fr
  8) phone number               16 1 49 40 35 98
  9) FAX number                 16 1 49 40 35 68


II. Russian participants
                          1
  1) family name                Belishev
  2) given name                 Mikhail
  3) patronimic                 Igorevich
  4) degree, title(s)           Dr.Phys.-Mat.Sci.
  5) affiliation                POMI RAN
  6) position                   Ved. nauchn. sotr
  7) mailing address            SPb,199011, Fontanka 27
  8) e-mail address             apk@niif.spb.su
  9) phone number               (812) 117 32 09
 10) FAX number                 (812) 310 53 77

                          2

  1) family name                Kiselev
  2) given name                 Alexey
  3) patronimic                 Prokhorovich
  4) degree, title(s)           Dr.Phys.-Mat.Sci.
  5) affiliation                Inst. Probl. Mashinovedenia RAN
  6) position                   Ved. nauchn. sotr
  7) mailing address            SPb,199178, V.O.Bolshoy Prospect 61
  8) e-mail address             apk@niif.spb.su
  9) phone number               (812) 291 07 64
 10) FAX number                 (812) 217 86 14

 III. Subject of joint work:
      Exchange of new ideas in theory of waves
      Main subjects will be:
(i)   boundary control approach in inverse problems
(ii)  high-frequency asymptotic theory of diffraction and
(iii) mathematical theory of sound emission at dry friction

 IV. Desired duration:  5  days in the period
     from 4 to 9 of June 1996.