Ukrainian Задача Турана про цегельний завод Cited by user Lxlalexlxl on 12 Jul 2022 [[Файл:Zarankiewicz_K4,7.svg|міні| Оптимальне розташування для графа.
English Three utilities problem Cited by user David Eppstein on 24 Oct 2021 The classical mathematical puzzle known as the three utilities problem; the three cottages problem or sometimes water, gas and electricity can be stated as follows:.