TR001 - J. Masajtis, J. Awrejcewicz, ''Mechanical transducer for measurement of vibration frequencies of a loom'', TUL Press, Lodz, 1981, 15 pages, in Polish.
TR002 - J. Awrejcewicz, K. Zubiel, T. Chałko, ''Methods of machines lubrication'', Lodz, 1981-1982 (technical reports, for the Factory of Agricultural Machines Production in Glowno).
TR003 - T. Chałko, J. Awrejcewicz, K. Marynowski, ''A method of computation of critical velocities and the parameters of forced vibrations for underwater pumping engines'', TUL Press, Lodz, 1982, 115 pages, in Polish.
TR004 - J. Awrejcewicz, K. Czołczynski, K. Marynowski, Vibrations and dynamics of rotors'', TUL Press, Lodz, 1982, 27 pages, in Polish.
TR005 - J. Awrejcewicz, K. Czołczynski, K. Marynowski, ''Free Vibrations and stability of rotors subjected to follower force'',TUL Press, Lodz, 1982, 115 pages, in Polish.
TR006 - A. Kelm, J. Awrejcewicz, ''The method for investigation of steel ground situated containers'', TUL Press, Lodz, 1983, 30 pages, in Polish.
TR007 - W. Wodzicki, J. Awrejcewicz, ''The method for determination of motion resistance coefficients of rotating machinery elements'', TUL Press, Lodz, 1985, 30 pages, in Polish.
TR008 - J. Awrejcewicz, J. Kokociński, ''Vibration measurement of the fans WP-30/71 in trams'', for the Institute of Heat Techniques, Lodz, 1996.
TR009 - J. Awrejcewicz, J. Kokociński, ''Spectral analysis of a pressure changes in the sorting machine M-50'', Beloit-Poland S.A., Lodz, 1996.
TR010 - J. Awrejcewicz, J. Kokociński, ''Spectral analysis in the sorting machine CW14BSL'', Beloit-Poland S.A., Lodz, 1996.
TR011 - J. Awrejcewicz, J. Kokociński, ''Spectral analysis of pressure changes before runner'', Beloit-Poland S.A., Lodz, 1996.
TR012 - J. Awrejcewicz, J. Kokociński, ''Spectral analysis in the sorting machine M-24''. Beloit-Poland S.A., Lodz, 1996.
TR013 - J. Awrejcewicz, ''Analytical - Numerical Method of Global Analysis of Discrete Nonlinear Dynamical Systems'', Lodz, 1997 (36 pages).
TR014 - J. Awrejcewicz, S. Bobrzyk, ''Measurement of a noise level in flats'', Retkinia Co-op, Lodz, 1998.