{"id":"bologna1938aerial","URL":"https://www-th.bo.infn.it/tunguska/APS-photolist.htm","type":"webpage","title":"Kulik's 1938 aerial photographic survey of the Tunguska area (photo list)","author":[{"given":"Leonid A. (expedition)","family":"Kulik"},{"literal":"University of Bologna Tunguska group (web edition)"}],"issued":{"date-parts":[[1938]]},"year-text":"1938","container-title":"Tunguska Home Page (University of Bologna)","catalog-key":"SRC0D4EC55072Q8"}