Problems of Dark Nebulae, Treated by the Method of Moments
Lyttkens, Ejnar
Problems of Dark Nebulae, Treated by the Method of Moments - Upsala : Almquist & Wiksell, 1950. - 88 p. ; 15 cm. - Nova Acta Regiae Societatis Scientiarum Upsaliensis. Uppsala Astronomiska Observatoriums Annalar, Band 2 ; Nº 9 .
Problems of Dark Nebulae, Treated by the Method of Moments - Upsala : Almquist & Wiksell, 1950. - 88 p. ; 15 cm. - Nova Acta Regiae Societatis Scientiarum Upsaliensis. Uppsala Astronomiska Observatoriums Annalar, Band 2 ; Nº 9 .