Digital receipts for local transactions in commercial spaces
| Main Author: | |
|---|---|
| Format: | masterThesis |
| Language: | eng |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10216/57740 |
| Country: | Portugal |
| Oai: | oai:repositorio-aberto.up.pt:10216/57740 |