TY  - RPRT
TI  - LINEAR TRANSFORMATIONS IN HILBERT SPACE: II. ANALYTICAL ASPECTS.
AU  - M H Stone
PY  - 1929
DO  - 10.1073/pnas.15.5.423
UR  - https://pubmed.ncbi.nlm.nih.gov/16577194/
ID  - 16577194
ER  -