div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=the-analysis-of-attendance-and-foursquare-check-inshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: The analysis of attendance and foursquare check-ins loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader037vdocumentsnetreader037viewer202210290355b9b962bb61eb9e1a8b465bhtml5thumbnails1jpg width=140 height=200 divdiv