Analysis of information sources in references of the Wikipedia article "Retractable roof" in English language version.
It was on January 11, 1988 when the current site of the Australian Open tennis championships – then called the Australian National Tennis Centre at Flinders Park – opened its doors for the first day of championship play, featuring its first-of-its kind-in-tennis retractable roof over its center court stadium.
It was on January 11, 1988 when the current site of the Australian Open tennis championships – then called the Australian National Tennis Centre at Flinders Park – opened its doors for the first day of championship play, featuring its first-of-its kind-in-tennis retractable roof over its center court stadium.