"0"^^ . "invariant with respect to direction"@en-us . . . "isotropic"^^ . . "0"^^ . "01360804-a"^^ . . "isotropous"@en-us . "301360804"@en-us . "isotropic"@en-us . "301307539"@en-us . "301360804"^^ . . "301314421"@en-us . . . .