REFERENCES
- Dilov H (1985) Micro algae—mass cultivation and application. Sofia, Bulgarian Academy of Science, 194.
- Doicheva L., Dimitrov D. (1975) An Algorithm for defining the relation doze-effect based on experimental data. Jubilee scientific session (a report book) T. VI, D. Mitropolia, 32–39.
- Plohinskii N (1970) Biomethry. Moskva: High School. 367
- Rojićková- Padrtová R., Marśálek B (1998) Chemosphere, 38(14), 3329–3338
- Standart Method of Test for Evaluating Acute Toxicity of Industrial Water to Fresh—Water Fishes (1972) Ann. Book of ASTM Standards, part 23, 266–274