TY - RPRT TI - Geisel, Zacherl, and Radons reply. AU - T Geisel AU - A Zacherl AU - G Radons PY - 1988 DO - 10.1103/physrevlett.61.1040 UR - https://pubmed.ncbi.nlm.nih.gov/10039501/ ID - 10039501 ER -