 be4i wa4ng lu4  (Invisible City)
zhu3 ya3n : Bernard Laufer  shi4 Himself\n   Emil Bednarek  shi4 Himself\n   Wilhelm Boger  shi4 Himself\n  le4i xi2ng :  ji4 lu4 \n  sha4ng yi4ng shi2 jia1n : me3i guo2 :1967 nia2n 9 yue4 25 ri4 \n  ge1ng duo1 yi4 mi2ng :Invisible City\n  cha3n di4 :  xi1n jia1 po1   yu3 zho3ng :  yi1ng yu3 