The Editor-in-Chief has retracted this article [1] because it shows significant overlap with another publication by the same authors [2] and is therefore redundant. Salah Boulaaras and Rafik Guefaifia do not agree with this retraction. Mohamed Haiour and Bilel Mairi have not responded to any correspondence from the editor or the publisher about this retraction. The online version of this article contains the full text of the retracted article as electronic supplementary material.

[1] Boulaaras, S., Guefaifia, R., Haiour, M. et al. Bol. Soc. Mat. Mex. (2019). Existence of positive weak solutions for a new class of Kirchhoff elliptic systems with multiple parameters. Bol. Soc. Mat. Mex. https://doi.org/10.1007/s40590-018-00231-1.

[2] Salah Boulaaras & Rafik Guefaifia. Existence of positive weak solutions for a class of Kirchhoff elliptic systems with multiple parameters. Math. Meth. Appl. Sci. 2018; 41: 5203–5210. https://doi.org/10.1002/mma.5071.