array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9563947) ["publisher_code"]=> int(49) ["base_code"]=> int(22) ["book_code"]=> int(1) ["page"]=> string(3) "102" ["sort"]=> int(170) ["body"]=> string(60) "1) Minsky M:U.S. Patent#3013467, Microscopy Apparatus. 1957." ["mol"]=> NULL ["pubmed"]=> NULL ["doi"]=> string(15) "10.2307/1883812" ["group_id"]=> int(5) ["internal_flag"]=> bool(false) } }