Keras, E., P. Balaišis, N. Dzingus, D. Eidukas, and A. Valinevičius. “Electronic Plant Leaf Testing System”. Elektronika ir Elektrotechnika 88, no. 8 (October 20, 2008): 99-102. Accessed October 4, 2022. https://eejournal.ktu.lt/index.php/elt/article/view/11362.