TY - JOUR
AU - D. van Blerkom
BT - Monthly Notices of the Royal Astronomical Society
DO - 10.1093/mnras/145.1.75
N1 - JILA Pub. 519
PY - 1969
EP - 75\textendash90
T2 - Monthly Notices of the Royal Astronomical Society
TI - Radiative excitation in planetary nebulae
UR - http://adsabs.harvard.edu/full/1969MNRAS.145...75V
VL - 145
ER -