1. M. Trela,
    A semi-theoretical model of stability of vertical falling liquid films,
    Chemical Engineering Science, vol. 49, no 7, 1007 - 1013, 1994.
  2. J. Mikielewicz, M. Trela, E. Ihnatowicz,
    Direct contact condensation of vapour on liquid layer within the thermal developing region,
    Proc. of ICHMT International Symposium on HEAT MASS TRANSFER IN CHEMICAL PROCESS INDUSTRY ACCIDENT, 305 - 314, Rome, 1994.
  3. M. Trela, J. Mikielewicz, M. W. Collins,
    Investigation of the shape of gravity driven liquid sheets,
    Proc. of International Symposium on Turbulence Heat and Mass Transfer, Lisbon 9 -12 August, 1994 (and also in the book Turbulence Heat Transfer 1, 138-143, Begell House Inc. Publishers, New York 1995).
  4. E. Ihnatowicz, M. Trela, J. Mikielewicz,
    Untersuchungen der Thermischen Einlaufstrecken während der Dampfkondensation auf einer Flüssigkeitsschicht,
    Proc. 5th International Symposium "Heat Exchange and Renewable Energy Sources", pp. 39 - 46, Świnoujście, 1994.
  5. D. Butrymowicz, M. Trela,
    Analyse der Optimallänge der Dränungsflosse bei Kondensation an Engberippten Rohren,
    Proc. 5th International Symposium "Heat Exchange and Renewable Energy Sources", pp. 99 - 106, Świnoujście, 1994.