共 7 条
[1]
TEYLER, 1914, BER AKAD WET, P601
[2]
1904, BUCH PERIODSCHE SYST
[3]
1914, BER AMST AKAD, P924
[4]
1916, BER AKAD WET AMSTERD, P27
[5]
1915, CHEM JAARBOEKJE
[6]
1916, BER AKAD WET, P1228
[7]
1914, BER AMST AKAD