A. Lemenant, E. Milakis:
Quantitative stability for the first Dirichlet eigenvalue in Reifenberg flat domains in R^N
J. Math. Anal. Appl. 2010

A. Lemenant, E. Milakis:
A stability result for nonlinear Neumann problems in Reifenberg flat domains in $\mathbb R^N$.
Publ. Mat. 2011

A. Lemenant, E. Milakis, L. V. Spinolo:
On the extension property of Reifenberg-flat domains
Annales Academiae Scientiarum Fennicae Mathematica 2012

A. Lemenant, E. Milakis, L. V. Spinolo:
Spectral Stability Estimates for the Dirichlet and Neumann Laplacian in rough domains
J. Funct. Anal. 2013