| article html file updated | 6 February 2020 16:26 CET | Update | https://www.mdpi.com/2077-0383/4/3/414 |
| article html file updated | 7 May 2019 00:06 CEST | Update | N/A |
| article html file updated | 25 March 2019 22:40 CET | Update | N/A |
| article html file updated | 21 August 2015 08:28 CEST | Update | N/A |
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| article xml file uploaded | 25 June 2015 12:09 CEST | Update | https://www.mdpi.com/2077-0383/4/3/414/xml |
| article html file updated | 17 March 2015 05:03 CET | Original file | N/A |
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| article pdf uploaded. | 11 March 2015 10:33 CET | Updated version of record | https://www.mdpi.com/2077-0383/4/3/414/pdf |
| article pdf uploaded. | 9 March 2015 14:07 CET | Version of Record | https://www.mdpi.com/2077-0383/4/3/414/pdf-vor |
