Sistemi massa-molla

{"si":[11,294],"tr":[11],"pl":[17],"cz":[17],"sk":[17],"fr":[19,271],"lu":[19],"ru":[24],"ua":[24],"by":[24],"ee":[24],"lv":[24],"lt":[24],"md":[24],"bg":[24,244,294],"ge":[24],"az":[24],"am":[24],"tm":[24],"uz":[24],"kg":[24],"tj":[24],"kz":[24],"tl":[39],"pg":[39],"la":[39],"bt":[39],"np":[39],"il":[40],"br":[43],"cn":[94,270],"jp":[103,281],"de":[144,283],"kr":[151],"tw":[151],"nz":[151],"id":[151],"ph":[151],"bn":[151],"bd":[151],"my":[151],"sg":[151],"vn":[151],"hk":[151],"th":[151],"kh":[151],"mm":[151],"at":[163,294],"ve":[171],"co":[171],"ec":[171],"pe":[171],"cl":[171],"ar":[171],"bo":[171],"py":[171],"uy":[171],"ae":[232],"sa":[232],"eg":[232],"om":[232],"qa":[232],"kw":[232],"iq":[232],"ir":[232],"sy":[232],"lb":[232],"dz":[232],"ma":[232],"tn":[232],"ly":[232],"jo":[232],"ye":[232],"hr":[244,294],"ba":[244,294],"hu":[244,294],"rs":[244,294],"me":[244,294],"al":[244,294],"mk":[244,294],"gr":[244,294],"ro":[244,294],"gb":[246,294],"ie":[246],"au":[252],"it":[255,294],"dk":[256],"no":[256],"fi":[256],"us":[258],"ca":[258],"es":[262,294],"pt":[262,294],"se":[266],"ch":[271,294],"in":[272],"li":[294]}