Dow Jones:COMPANY NEWS; ENEL TO PAY $300 MILLION FOR ECHELON'S TECHNOLOGY. In: The New York Times. 11.Mai 2000, ISSN0362-4331 (nytimes.com[abgerufen am 23.April 2022]).
Dow Jones:COMPANY NEWS; ENEL TO PAY $300 MILLION FOR ECHELON'S TECHNOLOGY. In: The New York Times. 11.Mai 2000, ISSN0362-4331 (nytimes.com[abgerufen am 23.April 2022]).