1 Correction to: Requirements Engineering https://doi.org/10.1007/s00766-021-00370-4

The article “On the relationship between similar requirements and similar software”, written by Muhammad Abbas, Alessio Ferrari, Anas Shatnawi,Eduard Enoiu, Mehrdad Saadatmand and Daniel Sundmark, was originally published Online First without Open Access. The author decided to opt for Open Choice and to make the article an Open Access publication. Therefore, the copyright of the article has been changed to © The Author(s) 2022 and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence and indicate if changes were made. The images or other third-party material in this article is included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0.

In this article Alessio Ferrari should have been denoted as a corresponding author.