| article html file updated | 8 February 2020 02:01 CET | Update | https://www.mdpi.com/2076-3921/6/2/23 |
| article html file updated | 23 September 2019 23:05 CEST | Update | N/A |
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| article html file updated | 28 June 2017 12:31 CEST | Update | N/A |
| article html file updated | 11 April 2017 07:16 CEST | Update | N/A |
| article xml uploaded. | 11 April 2017 07:15 CEST | Update | https://www.mdpi.com/2076-3921/6/2/23/xml |
| article pdf uploaded. | 11 April 2017 07:15 CEST | Updated version of record | https://www.mdpi.com/2076-3921/6/2/23/pdf |
| article pdf uploaded. | 11 April 2017 07:12 CEST | Updated version of record | N/A |
| article html file updated | 27 March 2017 05:25 CEST | Update | N/A |
| article html file updated | 24 March 2017 07:29 CET | Update | N/A |
| article html file updated | 24 March 2017 07:12 CET | Update | N/A |
| article html file updated | 23 March 2017 07:27 CET | Original file | N/A |
