Orevkov, S. Y.; Kharlamov, V. M.; Shustin, E. I.: Singularity which has no M-smoothing. In: The Arnoldfest, Fields Institute Communications vol. 24, pp. 273 - 309. American Mathematical Society, Providence/RI (1999)

Polyak, M.: New Whitney-type formulae for plane curves. In: Differential and Symplectic Topology of Curves, pp. 103 - 111. American Mathematical Society, Providence/RI (1999)

Shapiro, B.: Tree-like curves and their number of inflection points. In: Differential and Symplectic Topology of Curves, pp. 113 - 129. American Mathematical Society, Providence/RI (1999)

Soibelman, Y.: Meromorphic tensor categories, quantum affine and chiral algebras I. In: Recent Developments in Quantum Affine Algebras and Related Topics, Contemporary Mathematics, Vol. 248, pp. 437 - 469. AMS, Providence, R. I. (1999)

Tanabé, S.: On geometry of fronts in wave propagations. In: Geometry and Topology of Caustics, Banach Center Publications, Vol. 50, pp. 287 - 304. Polish Academy of Sciences, Warsaw (1999)

Teicher, M.: New invariants for surfaces. In: Tel Aviv Topology Conference: Rothenberg Festschrift (1998), Contemporary Mathematics, Vol. 231, pp. 271 - 281. AMS, Providence, R. I. (1999)

Umehara, M.: A unified approach to the four vertex theorems I. In: Differential and Symplectic Topology of Curves, pp. 185 - 228. American Mathematical Society, Providence/RI (1999)

Umehara, M.; Thorbergsson, G.: A unified approach to the four vertex theorems II. In: Differential and Symplectic Topology of Curves, pp. 229 - 252. American Mathematical Society, Providence/RI (1999)

Voronov, A. A.: The Swiss-Cheese operad. In: Homotopy invariant algebraic structures, Contemporary Mathematics, Vol. 239, pp. 365 - 373. AMS, Providence, R. I. (1999)

Hirzebruch, F.: Complex cobordism and the elliptic genus. In: Algebraic geometry: Hirzebruch 70, pp. 9 - 20. Algebraic Geometry Conference in Honor of F. Hirzebruch's 70th Birthday, Warszawa, May 11, 1998 - May 16, 1998. AMS, Providence, RI (1999)

Tanabé, S.: On geometry of fronts in wave propagations. In: Geometry and topology of caustics—CAUSTICS '98, pp. 287 - 304. Symposium on Geometry and topology of caustics — CAUSTICS '98, Warsaw, June 15, 1998 - June 27, 1998. Institute of Mathematics, Polish Academy of Sciences, Warszawa (1999)

Zagier, D.: From quadratic functions to modular functions. In: Number theory in Progress. - Vol. 2: Elementary and analytic number theory, pp. 1147 - 1178. International Conference on Number Theory, Zakopane [Poland], June 30, 1997 - July 09, 1997. de Gruyter, Berlin (1999)

Adam, M.: Degenerierende elliptische Kurven und ihre Anwendung zur Bestimmung der Struktur der n-Teilungspunkte. Bonn (1999)

Brungs, D.: Assoziative Algebren als Hilfsmittel in der Darstellungstheorie konformer Feldtheorien. Bonn (1999)

Caspar, A.: Brill-Noether-Varietäten in positiver Charakteristik. Bonn (1999)

Häsemeyer, C.: Einige Fragen aus der Theorie der elliptischen Kurven mit komplexer Multiplikation. Bonn (1999)

Heinloth, J.: Über den Modulstack von Vektorbündeln auf Kurven. Bonn (1999)

Klingholz, T.: Unterbündel maximalen Grades von Vektorbündeln auf elliptischen Kurven. Bonn (1999)

Spitzweck, M.: Realisierungen motivischer Fundamentalgruppen und ihre Anwendung. Bonn (1999)