The file contains correspondence, notes, list of participants, 2 color photocopies (20x30 cm, unknown authorship): The thermoplane prototype Russia 4001 in tethered mode outside its hangar in Ulyanovsk, the Hexa-Pod-Telescope (HPT) in the workshop of the Vertex company.

It includes: Draft commentary ‘’ESF views on Isla’’; Letters on: ESF-PESC working party ‘’100 Tesla Science EuroLab’’, ISLA proposal; Minutes (handwritten) of the ISLA meeting on 11/02/1994 (Paris); Memorandum of understanding – copy (11/1995); Conclusions and recommendations of the ESA Interferometry Panel; Papers: ‘’Stellar Optical Interferometry in the 1990s’’ by J. T. Armstrong, D. J. Hutter and others (Physics Today, 05/1995), ‘’ISLA – the International Stratospheric Laboratory for Astrophysics, the optimum astronomical observatory for the 21st century’’ by G. F. O. Schnur and K. –H. Stenvers (International Symposium in Space Optics 1994: Earth Observation and Astronomy, SPIE vol. 2209).

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