Gomes, J. N. V., Marrocos, M. A. M., & Mesquita, R. R. (2015). Hadamard type variation formulas for the eigenvalues of the $η$-Laplacian and applications.
Chicago Style (17th ed.) CitationGomes, J. N. V., M. A. M. Marrocos, and R. R. Mesquita. Hadamard Type Variation Formulas for the Eigenvalues of the $η$-Laplacian and Applications. 2015.
MLA (9th ed.) CitationGomes, J. N. V., et al. Hadamard Type Variation Formulas for the Eigenvalues of the $η$-Laplacian and Applications. 2015.
Warning: These citations may not always be 100% accurate.