Jacek Malec (1987). Pewna metoda reprezentacji wiedzy o dynamicznej scenie robota (A Method for Representing Knowledge about Dynamical Environment of a Robot). PhD thesis, Technical University of Wroclaw, Wroclaw, Poland.

Jacek Malec and Witold Paluszynski (1981). System generacji i wykonywania planow dzialan robota III generacji (A Plan Generation and Execution System of a 3rd Generation Robot). Master's thesis, Institute of Technical Cybernetics, Technical University of Wroclaw, Poland.