1. Colloids and crystalloids of urine as factors influencing the solubility of uric acid;Ascolli;Bull. Soc. ital. biol. sper.,1928
2. Stalagmones of urine;Bechhold;Biochem. Z.,1920
3. Kapillärchemie;Freundlich,1930
4. Compatibility of sodium condrotin sulphate and its excretion through the urinary tract. Study of its use in calculous disease;Goldberg;Ztschr. f. Urol. Chir.,1934