@article{ZNSL_2021_501_a5, author = {Yibo Wang and N. A. Stepanova}, title = {Estimating the amount of sparsity in two-point mixture models}, journal = {Zapiski Nauchnykh Seminarov POMI}, pages = {78--101}, publisher = {mathdoc}, volume = {501}, year = {2021}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ZNSL_2021_501_a5/} }