Its distance was found to be about 60,000,000,000,000 ... from the hundreds of plates in the photographic library of the Harvard Observatory. The newer method rests upon careful interpretation ...
Campbell, Dennis, Marshall Meyer, Shelley Xin Li, and Kristin Stack. "Haier: Zero Distance to the Customer (A)." Harvard Business School Case 115-006, April 2015. (Revised June 2015.) ...
Campbell, Dennis, Marshall Meyer, and Shelley Xin Li. "Haier: Zero Distance to the Customer (C)." Harvard Business School Supplement 115-057, April 2015. (Revised June 2015.) ...