TY - RPRT TI - An Inversion and Representation Theory for Convolution Transforms with Totally Positive Kernels. AU - I I Hirschman AU - D V Widder PY - 1948 DO - 10.1073/pnas.34.4.152 UR - https://pubmed.ncbi.nlm.nih.gov/16588797/ ID - 16588797 ER -