@article{MRR_2022__3__35_0,
     author = {Alexander Belton and Dominique Guillot and Apoorva Khare and Mihai Putinar},
     title = {Preservers of totally positive kernels and {P\'olya} frequency functions},
     journal = {Mathematics Research Reports},
     pages = {35--56},
     publisher = {MathOA foundation},
     volume = {3},
     year = {2022},
     doi = {10.5802/mrr.12},
     language = {en},
     url = {https://mrr.centre-mersenne.org/articles/10.5802/mrr.12/}
}