@book{2002-diks
,title={{Mathematical foundations of computer science 2002: 27th international symposium, MFCS 2002, Warsaw, Poland, 26--30.08.2002: proceedings}}
,booktitle={{Mathematical foundations of computer science 2002: 27th international symposium, MFCS 2002, Warsaw, Poland, 26--30.08.2002: proceedings}}
,editor={Krzysztof Diks and Wojciech Ritter}
,publisher={Springer-Verlag}
,address={Berlin}
,series={Lecture Notes in Computer Science}
,volume={2420}
,year={2002}
}