SIRGHI, N., NEAMTU, M., MIRCEA, G. and RAMESCU, D. (2019) “The deterministic model with time delay for a new product diffusion in a market”, Timisoara Journal of Economics and Business, 11(1), pp. 55-66. Available at: http://tjeb.ro/index.php/tjeb/article/view/TJEB-vol11-2018-iss1-art4-SIRGHI (Accessed: 20May2019).