Proyecciones en la Grassmanniana e inmersiones dobles de Veronese - José Carlos Sierra García; Enrique Arrondo Esteban (dir. tes.); Ignacio Sols Lucia (pres.); Raquel Mallavibarrena Martínez de Castro (secr.); Luis Giraldo Suárez (voc.); Edoardo Sernesi (voc.); Roberto Muñoz Izquierdo (voc.) (2004)

Classification of n-dimensional subvarieties of G(1, 2n) that can be projected to G(1, n + 1) - Arrondo, E.; Sierra, J.C.; Ugaglia, L. (Bulletin of the London Mathematical Society, 2005)

Análisis del rendimiento en el doctorado en función del sexo: Sex-based performance assessment in doctoral degrees - María Paz Bermúdez Sánchez; Alejandro Guillén Riquelme; Almudena Gómez García; Raúl Quevedo Blasco; José Carlos Sierra García (Educación XX1: Revista de la Facultad de Educación, 2011)

Collaborative assistive robot for mobility enhancement - Cristina Urdiales García; Claudio Ulises Cortés García (dir. tes.); José Carlos Sierra García (pres.); Mario Martín Muñoz (secr.); Josep Aguilar Martín (voc.); Federico Thomas Arroyo (voc.) (2010)

Special birational transformations of projective spaces - Alzati, A.; Sierra, J.C. (Advances in Mathematics, 2016)

The smooth surfaces in P 4 with few apparent triple points - Sierra, J.C. (Communications in Contemporary Mathematics, 2016)

Quadro-Quadric special birational transformations of projective spaces - Alzati, A.; Sierra, J.C. (International Mathematics Research Notices, 2015)

On globally generated vector bundles on projective spaces II - Sierra, J.C.; Ugaglia, L. (Journal of Pure and Applied Algebra, 2014)

Surfaces in P4 whose 4-secant lines do not sweep out a hypersurface - Sierra, J.C. (Comptes Rendus Mathematique, 2013)

A bound on the degree of schemes defined by quadratic equations - Alzati, A.; Sierra, J.C. (Forum Mathematicum, 2012)

A remark on Zak's theorem on tangencies - Sierra, J.C. (Mathematical Research Letters, 2011)

On the quadratic normality and the triple curve of three-dimensional subvarieties of ?5 - De Poi, P.; Mezzetti, E.; Sierra, J.C. (Advances in Geometry, 2010)

A degree bound for globally generated vector bundles - Sierra, J.C. (Mathematische Zeitschrift, 2009)

Smooth n-dimensional subvarieties of double-strock P sign2n-1 containing a family of very degenerate divisors - Sierra, J.C. (International Journal of Mathematics, 2009)

On the extendability of elliptic surfaces of rank two and higher - Lopez, A.F.; Muñoz, R.; Sierra, J.C. (Annales de l'Institut Fourier, 2009)

Varieties with a reducible hyperplane section whose two components are hypersurfaces - Sierra, J.C.; Tironi, A.L. (Proceedings of the American Mathematical Society, 2007)

Some remarks on surfaces in P4 containing a family of plane curves - Carlos Sierra, J.; Tironi, A.L. (Journal of Pure and Applied Algebra, 2007)

Tangential projections and secant defective varieties - Muñoz, R.; Sierra, J.C.; Conde, L.E.S. (Bulletin of the London Mathematical Society, 2007)

On double Veronese embeddings in the Grassmannian double-struck G sign (1, N) - Sierra, J.C.; Ugaglia, L. (Mathematische Nachrichten, 2006)

Surfaces in G (1, 5) with one apparent double point - Sierra, J.C. (Mathematica Scandinavica, 2005)