1. Self-trapping of positively charged particles in metals

   • A. Seeger

   Contributed Papers Pages: 85 - 92

2. Zur Vergrauung von Entladungsgefäßen

   • Ulrich Kümmel

   Contributed Papers Pages: 93 - 97

3. Transient times and multiplex behavior of nematic liquid crystals in the electric field

   • M. Schiekel
   • K. Fahrenschon
   • H. Gruler

   Contributed Papers Pages: 99 - 105

4. Investigations on the cold-work peak of hydrogen in iron by means of the magnetic after-effect

   • R. Martinez
   • F. Walz
   • H. Kronmüller

   Contributed Papers Pages: 107 - 112

5. Stimulated and spontaneous emission from laser dyes in the vapor phase

   • Bernd Steyer
   • Fritz P. Schäfer

   Contributed Papers Pages: 113 - 122

6. Mode selection by etalons in external diode laser cavities

   • C. Voumard
   • R. Salathé
   • H. Weber

   Contributed Papers Pages: 123 - 126

7. Negative differential resistance in theV(I)-characteristic of superconducting Sn-whiskers

   • J. D. Meyer

   Contributed Papers Pages: 127 - 130

8. Optimum coupling and efficiency of dye lasers

   • R. Polloni

   Contributed Papers Pages: 131 - 134

9. Comparative gain measurements for twelve organic laser dye solutions

   • A. Dienes

   Contributed Papers Pages: 135 - 139

10. Temperature dependence of positron trapping in deformed nickel

    • I. K. MacKenzie
    • T. E. Jackman
    • P. C. Lichtenberger

    Contributed Papers Pages: 141 - 143

11. Diffraction theory of an open resonator embedded in a uniaxial medium

    • H. Blok
    • N. P. de Koo

    Contributed Papers Pages: 145 - 156

12. Forthcoming papers

    Abstract Pages: A157 - A162

13. Book reviews

    • H. Fröhlich
    • H. Lotsch
    • H. Fischer

    BookReview Pages: A163 - A164