Szukana fraza: [Bibliografia = "Stillwell, J., Bell, M., Ueffing, P., Daras, K., Charles\-Edwards, E., Kupiszewski, M., \& Kupiszewska, D. \(2016\). Internal migration around the world\: comparing distance travelled and its frictional effect. Environment and Planning A, 48, 1657‑1675. https\:\/\/doi.org\/10.1177\/0308518X16643963"]