TY - JOUR AU - C. Corcoran AU - P. Langhoff BT - Journal of Mathematical Physics DA - Jan-01-1977 DO - 10.1063/1.523321 PY - 1977 EP - 651 T2 - Journal of Mathematical Physics TI - Moment-theory approximations for nonnegative spectral densities UR - http://link.aip.org/link/JMAPAQ/v18/i4/p651/s1\&Agg=doi VL - 18 SN - 00222488 ER -