| article html file updated | 12 August 2026 17:52 CEST | Update | https://www.mdpi.com/2073-4336/4/1/89 |
| article html file updated | 6 February 2020 00:35 CET | Update | N/A |
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| article pdf uploaded. | 22 March 2013 16:44 CET | Updated version of record | https://www.mdpi.com/2073-4336/4/1/89/pdf |
| article pdf uploaded. | 22 March 2013 14:14 CET | Updated version of record | https://www.mdpi.com/2073-4336/4/1/89/pdf-vor |
| article pdf uploaded. | 22 March 2013 14:12 CET | Updated version of record | https://www.mdpi.com/2073-4336/4/1/89/pdf-vor |
| article pdf uploaded. | 19 February 2013 09:01 CET | Version of Record | https://www.mdpi.com/2073-4336/4/1/89/pdf-vor |
