(1991), pp. 175-181.
SIAM Journal on Algebraic and Discrete Methods, Vol. 3, No. 3. (1982), pp. 351-358.
(6 Feb 2003)
(24 February 2005)
(1997)
(11 Feb 2006)
(2000), pp. 161-168.
(1994), pp. 398-414.
DMATH: Discrete Mathematics, Vol. 136 (1994)
Vol. 1664 (August 1999), pp. 210-225.
Science of Computer Programming, Vol. 34, No. 3. (1999), pp. 207-238.
(2006), pp. 637-642.
(2002)
(1997), pp. 19-34.
Nonlinearity, Vol. 18, No. 5. (September 2005), pp. 2193-2209.
(1996)
pp. 157-165.
(1998), pp. 293-304.
(1999)
Eur. J. Comb., Vol. 26, No. 5. (July 2005), pp. 765-778.
Informatique Theorique et Applications, Vol. 33, No. 4/5. (1999), pp. 401-426.
No. UMCS-91-3-3. (1991)
(1997)
(11 Jun 2003)
Theor. Comput. Sci., Vol. 350, No. 2. (February 2006), pp. 292-324.
Theoretical Computer Science, Vol. 278, No. 1-2. (2002), pp. 141-158.
(2000), pp. 189-202.
(2002)
(2006)
No. 93-40. (March0, 1993)
Bioinformatics, Vol. 20, No. 10. (10 July 2004), pp. 1546-1556.
(2002)
Theoretical Computer Science, Vol. 175, No. 2. (1997), pp. 283-292.
Journal of Mathematical Chemistry, Vol. 18, No. 2. (1995), pp. 321-348.
(1994)
J. Chem. Inf. Model., Vol. 37, No. 4. (28 July 1997), pp. 656-671.
Theoretical Computer Science, Vol. 115, No. 1. (1993), pp. 77-106.
: Partial Order in Environmental Sciences and Chemistry (2006), pp. 27-33.
: Partial Order in Environmental Sciences and Chemistry (2006), pp. 181-217.