Fixed doi links

Author: SundermannC

README.md

@@ -98,17 +98,17 @@ Here, we only present a small selection of papers. Any interesting work on UVL m
 
 ### Work on UVL
 
-* Chico Sundermann, Kevin Feichtinger, Dominik Engelhardt, Rick Rabiser, and Thomas Thüm. 2021. Yet another textual variability language? a community effort towards a unified language. SPLC '21. https://doi.org/10.1145/3461001.3471145
-* Chico Sundermann, Tobias Heß, Dominik Engelhardt, Rahel Arens, Johannes Herschel, Kevin Jedelhauser, Benedikt Jutz, Sebastian Krieter, and Ina Schaefer. 2021. Integration of UVL in FeatureIDE. MODEVAR@SPLC '21. https://doi.org/10.1145/3461002.3473940
-* Kevin Feichtinger, Johann Stöbich, Dario Romano, and Rick Rabiser. 2021. TRAVART: An Approach for Transforming Variability Models. VaMoS '21. https://doi.org/10.1145/3442391.3442400
-* Dario Romano, Kevin Feichtinger, Danilo Beuche, Uwe Ryssel, and Rick Rabiser. 2022. Bridging the gap between academia and industry: transforming the universal variability language to pure::variants and back. MODEVAR@SPLC '22. https://doi.org/10.1145/3503229.3547056
-* Jose M. Horcas, Jose A. Galindo, Mónica Pinto, Lidia Fuentes, and David Benavides. 2022. FM fact label: a configurable and interactive visualization of feature model characterizations. SPLC '22. https://doi.org/10.1145/3503229.3547025
-* David Romero, José Á. Galindo, Jose-Miguel Horcas, and David Benavides. 2021. A first prototype of a new repository for feature model exchange and knowledge sharing. SPLC '21. https://doi.org/10.1145/3461002.3473949
+* Chico Sundermann, Kevin Feichtinger, Dominik Engelhardt, Rick Rabiser, and Thomas Thüm. 2021. Yet another textual variability language? a community effort towards a unified language. SPLC '21. <https://doi.org/10.1145/3461001.3471145>
+* Chico Sundermann, Tobias Heß, Dominik Engelhardt, Rahel Arens, Johannes Herschel, Kevin Jedelhauser, Benedikt Jutz, Sebastian Krieter, and Ina Schaefer. 2021. Integration of UVL in FeatureIDE. MODEVAR@SPLC '21. <https://doi.org/10.1145/3461002.3473940>
+* Kevin Feichtinger, Johann Stöbich, Dario Romano, and Rick Rabiser. 2021. TRAVART: An Approach for Transforming Variability Models. VaMoS '21. <https://doi.org/10.1145/3442391.3442400>
+* Dario Romano, Kevin Feichtinger, Danilo Beuche, Uwe Ryssel, and Rick Rabiser. 2022. Bridging the gap between academia and industry: transforming the universal variability language to pure::variants and back. MODEVAR@SPLC '22. <https://doi.org/10.1145/3503229.3547056>
+* Jose M. Horcas, Jose A. Galindo, Mónica Pinto, Lidia Fuentes, and David Benavides. 2022. FM fact label: a configurable and interactive visualization of feature model characterizations. SPLC '22. <https://doi.org/10.1145/3503229.3547025>
+* David Romero, José Á. Galindo, Jose-Miguel Horcas, and David Benavides. 2021. A first prototype of a new repository for feature model exchange and knowledge sharing. SPLC '21. <https://doi.org/10.1145/3461002.3473949>
 
 
 ### Work Relevant for the Design of UVL
-* Maurice H. ter Beek, Klaus Schmid, and Holger Eichelberger. 2019. Textual Variability Modeling Languages: An Overview and Considerations. MODEVAR@SPLC '19.
-* Thorsten Berger and Philippe Collet. 2019. Usage Scenarios for a Common Feature Modeling Language. MODEVAR@SPLC '19. https://doi.org/10.1145/3307630.3342403
-* Thomas Thüm, Christoph Seidl, and Ina Schaefer. 2019. On Language Levels for Feature Modeling Notations. MODEVAR@SPLC '19 https://doi.org/10.1145/3307630.3342404
+* Maurice H. ter Beek, Klaus Schmid, and Holger Eichelberger. 2019. Textual Variability Modeling Languages: An Overview and Considerations. MODEVAR@SPLC '19. <https://doi.org/10.1145/3307630.3342398>
+* Thorsten Berger and Philippe Collet. 2019. Usage Scenarios for a Common Feature Modeling Language. MODEVAR@SPLC '19. <https://doi.org/10.1145/3307630.3342403>
+* Thomas Thüm, Christoph Seidl, and Ina Schaefer. 2019. On Language Levels for Feature Modeling Notations. MODEVAR@SPLC '19 <https://doi.org/10.1145/3307630.3342404>