LEADER 01697nam 2200397 450 001 9910703590303321 005 20150122155930.0 035 $a(CKB)5470000002431794 035 $a(OCoLC)900615778 035 $a(EXLCZ)995470000002431794 100 $a20150122d1946 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $2rdacontent 182 $2rdamedia 183 $2rdacarrier 200 10$aImpact resistance of three core materials and six sandwich constructions as measured by falling-ball tests /$fby K.H. Boller 210 1$aMadison, Wisconsin :$cUnited States Department of Agriculture, Forest Service, Forest Products Laboratory,$d1946. 215 $a1 online resource (17 unnumbered pages) $cillustrations 225 1 $aReport ;$vno. 1543 300 $aTitle from title screen (viewed Jan. 6, 2015). 300 $a"February 1946." 300 $aPublication pre-dates Federal Depository Library Program (FDLP) item numbers. No FDLP item number has been assigned. 300 $a"This report is one of a series issued in cooperation with the Army-Navy-Civil Committee on Aircraft Design Criteria under the supervision of the Aeronautical Board." 300 $a"In cooperation with the University of Wisconsin." 606 $aSandwich construction 615 0$aSandwich construction. 700 $aBoller$b Kenneth H.$01393251 712 02$aForest Products Laboratory (U.S.), 712 02$aUniversity of Wisconsin. 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910703590303321 996 $aImpact resistance of three core materials and six sandwich constructions as measured by falling-ball tests$93475563 997 $aUNINA