| article html file updated | 12 August 2026 18:55 CEST | Update | https://www.mdpi.com/2075-4418/3/2/222 |
| article html file updated | 6 February 2020 01:13 CET | Update | N/A |
| article html file updated | 19 September 2019 19:12 CEST | Update | N/A |
| article html file updated | 8 May 2019 06:54 CEST | Update | N/A |
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| article html file updated | 17 June 2015 07:55 CEST | Original file | N/A |
| article pdf uploaded. | 28 March 2013 17:46 CET | Updated version of record | https://www.mdpi.com/2075-4418/3/2/222/pdf |
| article pdf uploaded. | 26 March 2013 16:27 CET | Version of Record | https://www.mdpi.com/2075-4418/3/2/222/pdf-vor |
