@book{116417,
	author = {정 원철 Chŏng Wŏn-ch'ŏl },
	title = {고구려 산성 연구 Koguryŏ sansŏng yŏn'gu},
	publisher = {Tongbuga Yŏksa Chaedan},
	year = {2017},
	address = {Korea }
}