- ISSN 0010-0765 printed
- ISSN 1212-6950 electronic
Picogram techniques
- I. Klimeš, K. Štěpánková and J. Janák
Picogram techniques. IV. Quantitative photometric determination of 10-10 to 10 -12 g of cations
1969, Vol. 34, Issue 3, pp. 776–786 [Abstract]