Items where Year is 1989

Kolb, T. E. and Steiner, K. C. (1989) Spacing effects on seedlings of northern red oak and yellow-poplar. Tree Planters' Notes, 40 (3). ISSN 0096-8714

Massey, Philip and Garmany, Catharine D. and Silkey, Mariabeth and DeGioia-Eastwood, Kathleen (1989) The stellar content of two OB associations in the LMC - LH 117 (NGC 2122) and LH 118. The Astronomical Journal, 97 (1). pp. 107-130. ISSN 0004-6256

Tegler, Stephen and Wyckoff, Susan (1989) NH2 fluorescence efficiencies and the NH3 abundance in Comet Halley. The Astrophysical Journal, 343. pp. 445-449. ISSN 1538-4357