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- [22] EXCITATION OF HE 2 LAMBDA 4686 LINE IN QUIESCENT PROMINENCES OBSERVATORY, 1967, 87 (959): : 170 - &
- [23] LAMBDA 4686 HE II LINE INTENSITY IN H II REGIONS AND COSMIC-RAY FLUX ASTRONOMY & ASTROPHYSICS, 1972, 19 (03): : 398 - +
- [26] RELATIVE INTENSITY OF FINE STRUCTURE COMPONENTS OF LINE-H-II LAMBDA 4686-A DOKLADY AKADEMII NAUK SSSR, 1956, 106 (04): : 630 - 632