@misc{indiciaecae65d7ea5b3, title = {HL Dra: an active Algol-like binary system with a pulsating component star and a cool third body}, author = {Xiang-dong Shi and Sheng-bang Qian and Lin-jia Li and Wen-ping Liao}, year = {2021}, url = {https://ntrs.nasa.gov/citations/16938806532735}, note = {Source identifier: 16938806532735} }