| S. | |
| by | YUDIN B.F. , POPOVA A.A., CHUGAINOV P.V., SOSTERO G., LEPARDO A. |
| Astron. Astrophys., 323, 113-120 (1997) | |
| The symbiotic star YY Herculis. I. Photometric history over 1890-1996. | |
| o | Table 1, Fig. 1: <[MRH97] A> (Nos A-M) |
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