July 1

By G. Wolfram, V.K Jain, T. Okada, S. Amelinckx, D. K. Roy, V. P. Kalashnikov, V. B. Timofeev, N. R Rao, K. W. Böer, W. Waidelich, G. Bauer, H. Heinrich, M. Ali, A. Friedman, R. G Rhodes, K. N. Subramanian, B. V. Novikov, B.I.* Smirnov, K.J Rao, E. Gutsche, C. Marti, H. Kawai, M J Wood, H. J. Hansch, P. Grosse, No Contributor, H. A. Bähr, Yu Kagan, D. J. CRAIK, Yu E. Perlin, B. W. Holland, N. P. Kolmakova, P. Ehrhart, T.P. Srinivasan, L. Merten, A. E. Nikiforov, M. Victoria, L. K. Thomas, M. Fridman, P. W. Webb, P. Guyot, P. Regnier, V. V. Nemoshkalenko, S. J. T. Owen, W. Bitterlich, W Pompe, D Sh Abdinov, A M Afanasev, V A V Agenin, G A Akhundov, M V Andriyashik, J Antula, S Arajs, J -U Arnold, S M Atakishiev, R Balzek, B F Bilenkü, I Bunget, J T Calow, C D Cann, A E Cherednichenko, V I Cherepanov, E E Chernov, F N Chukhovskii, E Cruceanu, P Delavignette, M Denayer, A Deruyttere, B G Dick, J M Dupouy, A Farwer, A B Fazakas, V A Feigin, R P Ferrier, D M Freik, Sh N Gifeisman, V V Gorskh, R V Grigoriev, S Haussühl, L V Hoihoyd, J Hätz, M Höhne, R J Jelitto, D Kasperkovitz, F Kelemen, E Klugmann, L Ya Kobelev, H Konwent, L Kratena, A I Krotkii, R M F Lenford, A A Lipnik, K E Mann, F Matossi, A Mbhra, A G Mikolaichuk, A I Mitsek, S Mukai, C Muntoni, P Nagels, A Neda, V I Nepsha, D Niculescu, S D Nigam, M Owner-Petersen, H Pagnia, H Peisl, P K C Pillai, J Van Der Planken, I B Puchalska, R Romestain, E Ruedl, W Rupp, M A Ruvinskii, M Yu Sakhnovskii, T V Samoilova, M R Samuelsen, H -G Schöpf, V V Serdyuk, A Serpi, S S Sheinin, Yu A Sherstkov, V Sik, R Sizmann, M Sorohan, K G Srivastava, M Stasiw, T Suita, J S Tiwari, O V Troshin, T O Tuomi, A E Vidoz, R Visocekas, P Voss, A S Yakimova, K Zdansky, A M Zlobin, V V Zotov

Magneto-Optics Under Conitions Of The Integer And Factional Quantum Hall Effects In Si Mosfet

By V. B. Timofeev, I. Kukushkin, I. V. Kukushkin

July 1

By G. Wolfram, V.K Jain, T. Okada, S. Amelinckx, D. K. Roy, V. P. Kalashnikov, V. B. Timofeev, N. R Rao, K. W. Böer, W. Waidelich, G. Bauer, H. Heinrich, M. Ali, A. Friedman, R. G Rhodes, K. N. Subramanian, B. V. Novikov, B.I.* Smirnov, K.J Rao, E. Gutsche, C. Marti, H. Kawai, M J Wood, H. J. Hansch, P. Grosse, H. A. Bähr, Yu Kagan, D. J. CRAIK, Yu E. Perlin, B. W. Holland, N. P. Kolmakova, P. Görlich, P. Ehrhart, K. Müller, T.P. Srinivasan, L. Merten, A. E. Nikiforov, M. Victoria, L. K. Thomas, M. Fridman, P. W. Webb, P. Guyot, P. Regnier, V. V. Nemoshkalenko, S. J. T. Owen, W. Bitterlich, W Pompe, D Sh Abdinov, A M Afanasev, V A V Agenin, G A Akhundov, M V Andriyashik, J Antula, S Arajs, J -U Arnold, S M Atakishiev, R Balzek, B F Bilenkü, I Bunget, J T Calow, C D Cann, A E Cherednichenko, V I Cherepanov, E E Chernov, F N Chukhovskii, E Cruceanu, P Delavignette, M Denayer, A Deruyttere, B G Dick, J M Dupouy, A Farwer, A B Fazakas, V A Feigin, R P Ferrier, D M Freik, Sh N Gifeisman, V V Gorskh, R V Grigoriev, S Haussühl, L V Hoihoyd, J Hätz, M Höhne, R J Jelitto, D Kasperkovitz, F Kelemen, E Klugmann, L Ya Kobelev, H Konwent, L Kratena, A I Krotkii, R M F Lenford, A A Lipnik, K E Mann, F Matossi, A Mbhra, A G Mikolaichuk, A I Mitsek, S Mukai, C Muntoni, P Nagels, A Neda, V I Nepsha, D Niculescu, S D Nigam, M Owner-Petersen, H Pagnia, H Peisl, P K C Pillai, J Van Der Planken, I B Puchalska, R Romestain, E Ruedl, W Rupp, M A Ruvinskii, M Yu Sakhnovskii, T V Samoilova, M R Samuelsen, H -G Schöpf, V V Serdyuk, A Serpi, S S Sheinin, Yu A Sherstkov, V Sik, R Sizmann, M Sorohan, K G Srivastava, M Stasiw, T Suita, J S Tiwari, O V Troshin, T O Tuomi, A E Vidoz, R Visocekas, P Voss, A S Yakimova, K Zdansky, A M Zlobin, V V Zotov

Luminescence Measurements Of Two-Dimensional Electrons In The Regime Of The Integer And Fractional Quantum Hall Effects

By K. Ploog, V. B. Timofeev, K. Von Klitzing, I. V. Kukushkin, N. J. Pulsford, P. Hawrylak, R. J. Haug

## Abstract The radiative recombination of two‐dimensional electrons is studied in GaAs–GaAlAs heterojunctions with holes localised on acceptors in strong magnetic fields. The optical measurements...