W. Brauer/Francis Crick/J. White: Supercoiled DNA.
Scientific American 243 (1980), 100-113.

Corinne Cerf: A note on the tangle model for DNA-recombination.
Bull. Math. Biol. 60 (1998), 67-78.

F. Dean/A. Stasiak/T. Koller/N. Cozzarelli: Duplex DNA knots produced by
Escherichia coli topoisomerase I. 
J. Biol. Chemistry 260 (1985), 4795-4983.

Gerard van der Geer: Knots. Summer course 1999: unproven conjectures.
Amsterdam: Stichting Mathematisch Centrum,
CWI Syllabus. 45, 75-92 (1999). (Dutch)

Pieter van de Griend: Knots in DNA.
Aarhus Mat. Inst. 41 (1992), 26p.

C. Ernst/De Witt Sumners: A calculus for rational tangles. Applications to
DNA recombination. 
Math. Proc. Cambridge Phil. Soc. 108 (1990), 489-515.

C. Ernst/De Witt Sumners: Solving tangle equations arising in a DNA
recombination model. Math. Proc. Cambridge Phil. Soc. 126 (1999), 23-36.

21220 Louis Kauffman/Sofia Lambropoulou: From tangle fractions to DNA.
Internet 2003, 49p.

M. Krasnow/A. Stasiak a.o.: Determination of the absolute handledness of
knots and catenanes of DNA. Nature 304 (1983), 559-560.

Stanley Shaw/James Wang: DNA knot formation in aqueous solutions.
J. Knot Theory Ram. 3 (1994), 287-298.

Jonathan Simon: Knots and chemistry.
Proc. Symp. Appl. Math. 45 (1992), 97-130.

5173 De Witt Sumners: Untangling DNA.
Math. Intell. 12/3 (1990), 71-80.

De Witt Sumners: Knots, macromolecules and chemical dynamics.
In R. King/D. Rouvray (ed.): Graph theory and topology in chemistry. 
Elsevier 1987, 3-22.

De Witt Sumners: The role of knot theory in DNA research.
In McCrory/Schifrin, 297-318.

De Witt Sumners (ed.): New scientific applications of geometry and 
topology. Proc. Symp. Appl. Math. AMS 45 (1994).

6950 De Witt Sumners: Lifting the curtain. Using topology to probe the
hidden action of the enzymes.
Notices AMS May 1995, 528-537. 

De Witt Sumners/C. Ernst/N. Cozzarelli/S. Spengler: Analysis of the
mechanism of DNA recombination. 
Quart. Rev. Biophys. (ca. 1995).

S. Wasserman/N. Cozzarelli: Biochemical topology. Applications to DNA
recombination and replication. Science 232 (1986), 951-960.

S. Wasserman/J. Dungan/N. Cozzarelli: Discovery of a predicted DNA knot
substantiates a model for site-specific recombination.
Science 229 (1985), 171-174.

J. White: An introduction to the geometry and topology of DNA structure.
In Michael Waterman (ed.): Mathematical methods for DNA sequences.
CRC Press 1989, 225-253.