00482naa#a2200169#i#450# EN\INFRA-M\bibl\11980 20241221040405.6 2308-4898 20160618b2016####ek#y0engy0150####ca ENG RU New Methods of the Computer Aided Design of Roof Skeletons Journal article Moscow INFRA-M Academic Publishing LLC. 2016 4 с. Journal article local Kozniewski E. naukaru.ru