[文献書誌] Isao AZUMAYA, Takako OKAMOTO, Hiroaki TAKAYANAGI: "Crystal Structure of 2, 8, 14-Trimethyl-2, 8, 14-triazatetracyclo[14^<2,24>, 7, 2^<10,13>]tetracosa-4, 6, 10, 12, 16, 18, 19, 21, 23-nonaene-3, 9, 15-trione"Analytical Sciences. 17(11). 1363-1364 (2001)