Yakubovich SB. Index transforms associated with generalized hypergeometric functions. Math. Methods Appl. Sci.. 2004;27:35-46.

Lomp C. Integrals in Hopf algebras over rings. Comm. Algebra. 2004;32:4687-4711.Edit

Carvalho P, de Oliveira AG. Intersection and linking numbers in oriented matroids. Discrete Comput. Geom.. 2004;31:305-321.Edit

[2004-27] Labouriau IS, Ruas MA. Invariants for bifurcations .Edit

Rosales J., García-Sánchez PA, García-García JI. Ideals of finitely generated commutative monoids. Semigroup Forum. 2003;66:305-322.Edit

Yakubovich SB. On the integral transformation associated with the product of gamma-functions. Port. Math. (N.S.). 2003;60:337-351.

Yakubovich SB. Integral transformations by the index of Lommel's function. Period. Math. Hungar.. 2003;46:223-233.

Yakubovich SB. Integral transforms of the Kontorovich-Lebedev convolution type. Collect. Math.. 2003;54:99-110.

Yakubovich SB. On the index integral transformation with Nicholson's function as the kernel. J. Math. Anal. Appl.. 2002;269:689-701.

Yakubovich SB. Index transforms associated with Bessel and Lommel functions. Z. Anal. Anwendungen. 2002;21:627-638.

Yakubovich SB. Index transforms associated with products of Whittaker's functions. J. Comput. Appl. Math.. 2002;148:419-427.

Rosales J., García-Sánchez PA, García-García JI. Irreducible ideals of finitely generated commutative monoids. J. Algebra. 2001;238:328-344.Edit

Yakubovich SB, Yarotzkaya L.. Integral transformation associated with the Macdonald type kernels. East-West J. Math.. 2000;2:73-84.Edit

Dias A., Stewart I.. Invariant Theory for Wreath Product Groups. Journal of Pure and Applied Algebra. 2000;150:61-84.Edit

Oliveira A, Silva PV. Inverse automata and monoids and the undecidability of the Cayley subgraph problem for groups. Glasg. Math. J.. 2000;42:421-437.Edit

de Oliveira AG. An interpretation of the monodromy group of a wiring diagram. In: Proceedings of the 1st International Meeting on Geometry and Topology (Braga, 1997). Cent. Mat. Univ. Minho, Braga; 1998. 1. p. 111-117p. (electronic).Edit

Basto-Gonçalves J. Implicit Hamilton equations. Mat. Contemp.. 1997;12:1-16.

Yakubovich SB. Index integral transformations of Titchmarsh type. J. Comput. Appl. Math.. 1997;85:169-179.

Yakubovich SB. Index transforms World Scientific Publishing Co., Inc., River Edge, NJ 1996.

Labouriau IS, Dias AP. Instant chaos is chaos in slow motion. J. Math. Anal. Appl.. 1996;199:138-148.Edit

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Yakubovich SB. On the index-convolution Kontorovich-Lebedev transform. Integral Transform. Spec. Funct.. 1994;2:77-80.

Gorenflo R, Yakubovich SB. On the integral convolution for inverse $G$-transforms. Acta Math. Vietnam.. 1994;19:145-154.Edit

Bokowski J, de Oliveira AG. Invariant theory-like theorems for matroids and oriented matroids. Adv. Math.. 1994;109:34-44.Edit

Almeida J. Implicit operations and Knast's theorem. In: Semigroups (Luino, 1992). World Sci. Publ., River Edge, NJ; 1993. 1. p. 1-16p. Edit