9Ritting P R von. Textbook of the seience of preparation, sys- tematially Presentedaceording to the lastest developments and improvexnents [ M ]. Berlin : Ernst. u. korn, 1867. 被引量:1
10Kick F. The law of proportional resistances and its applica- tions [ M ]. LeiPzig, 1885. 被引量:1