| article html file updated | 7 February 2020 21:09 CET | Update | https://www.mdpi.com/2309-608X/3/1/2 |
| article html file updated | 22 September 2019 19:48 CEST | Update | N/A |
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| article html file updated | 11 December 2018 09:15 CET | Update | N/A |
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| article html file updated | 12 January 2017 02:19 CET | Update | N/A |
| article xml uploaded. | 12 January 2017 02:17 CET | Update | https://www.mdpi.com/2309-608X/3/1/2/xml |
| article pdf uploaded. | 12 January 2017 02:17 CET | Updated version of record | https://www.mdpi.com/2309-608X/3/1/2/pdf |
| article html file updated | 10 January 2017 12:05 CET | Original file | N/A |
| article xml uploaded. | 10 January 2017 12:04 CET | Original file | N/A |
| article pdf uploaded. | 10 January 2017 12:04 CET | Version of Record | https://www.mdpi.com/2309-608X/3/1/2/pdf-vor |
