Djankov, Bogdan. 1985. „Certain Considerations about the Epistemological and Semantic Foundations of Logical Investigations and Their Application”. Acta Universitatis Lodziensis. Folia Philosophica. Ethica-Aesthetica-Practica, nr 3 (styczeń):127-32. https://doi.org/10.18778/0208-6107.03.10.