Pawęta, B.; Pawęta, E. Comparison of Economic Cycles Morphology Based on Polish Gross Domestic Product Analysis in Years 2000–2013. In Economy Today: An Interdisciplinary Approach to Contemporary Economic Challenges; Urbanek, P., Ed.; , Series Ed.; Economics; Lodz University Press: Poland, 2016; pp. 81-94. https://doi.org/10.18778/8088-012-2.05.