@article{articleb24c9ac7, title = {Estimates on the derivatives and analyticity of positive definite functions on 'R POT. M'}, author = {Massa, Eugenio Tommaso and Peron, Ana Paula and Piantella, A. C}, year = {2017}, doi = {10.1007/s10476-017-0105-9}, journal = {Analysis Mathematica} }