1. Balagura-Baruch S, Bunch RL, King VF (1973) Effects of alkalosis on renal citrate metabolism in dogs infused with citrate. Am J Physiol 225: 385–388
2. Butz M, Dulce H-J (1981) Enhancement of urinary citrate in oxalate stone formers by the intake of alkaline salts. In: Smith LH, Robertson WG, Finlayson B (eds) Urolithiasis Research. Plenum Press, New York, London, p 881
3. Butz M (1982) Oxalatsteinprophylaxe durch Alkali-Therapie. Urologe A 21: 142–146
4. Butz M, Knispel H (1984) Molar calcium citrate ratio as diagnostic indicator in calcium nephrolithiasis. In: Rya11 RL, Brockis JG, Marshall VR, Finlayson B (eds) Urinary Stone Livingstone, Melbourne, New York, p 219–223
5. Butz M (1985) Zur Bedeutung von Zitrat für die Entstehung und Prophylaxe von Kalzium-harnsteinen. Extracta urologica, Suppl 1: 61–73