Lua APA (7ú heag.)

Valchev, D., Ribarova, I., Borisov, B., Radovanov, V., Lyubomirova, V., Kostova, I., . . . Lazarova, S. (2024). Valuable elements in sludge from eight municipal wastewater treatment plants in relation to their recovery potential. SpringerOpen.

Lua i Stíl Chicago (17ú heag.)

Valchev, Dobril, Irina Ribarova, Boyan Borisov, Viden Radovanov, Valentina Lyubomirova, Irina Kostova, Galina Dimova, Orhideya Karpuzova, agus Svetlana Lazarova. Valuable Elements in Sludge from Eight Municipal Wastewater Treatment Plants in Relation to Their Recovery Potential. SpringerOpen, 2024.

Lua MLA (9ú heag.)

Valchev, Dobril, et al. Valuable Elements in Sludge from Eight Municipal Wastewater Treatment Plants in Relation to Their Recovery Potential. SpringerOpen, 2024.

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