| article html file updated | 6 February 2020 22:13 CET | Update | https://www.mdpi.com/2077-0375/5/3/399 |
| article html file updated | 6 May 2019 12:33 CEST | Update | N/A |
| article html file updated | 26 March 2019 09:37 CET | Update | N/A |
| article html file updated | 28 September 2015 11:54 CEST | Update | N/A |
| article xml file uploaded | 28 September 2015 11:54 CEST | Update | https://www.mdpi.com/2077-0375/5/3/399/xml |
| article html file updated | 17 September 2015 12:58 CEST | Original file | N/A |
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| article pdf uploaded. | 1 September 2015 11:03 CEST | Updated version of record | https://www.mdpi.com/2077-0375/5/3/399/pdf |
| article pdf uploaded. | 28 August 2015 10:49 CEST | Version of Record | https://www.mdpi.com/2077-0375/5/3/399/pdf-vor |
