Optical spectra of five UX Orionis-type starsV. P. Grinin, O. V. Kozlova, A. Natta, I. Ilyin, I. Tuominen, A. N. Rostopchina and D. N. ShakhovskoyA&A, 379 2 (2001) 482-495DOI: https://doi.org/10.1051/0004-6361:20011280
