To reference or cite the objects present in the Software Heritage archive, permalinks based on SoftWare Hash IDentifiers (SWHIDs) must be used. Select below a type of object currently browsed in order to display its associated SWHID and permalink.
swh:1:cnt:e10e448d136836b350b821c47441ff1387e2ca18
importFrom(survey, hadamard) exportPattern("^[[:alpha:]]+")