In ResearchGate, citations are identified by an automated algorithm. Unfortunately, for various reasons the identification of citations is very often incomplete, and it is not possible to add citations "by hand", also not for the staff. Therefore there is no possibility to report this.

See also these discussions on missing citations (just a selection - this is one of the most frequently asked question in RG):

https://www.researchgate.net/post/RG-citations-how-are-they-calculated/1

https://www.researchgate.net/post/missing_citation_number/1

https://www.researchgate.net/post/Why_are_some_of_my_citations_not_shown2/1

https://www.researchgate.net/post/Why_the_citation_is_not_shown/1

https://www.researchgate.net/post/How_can_we_add_citation_on_research_gate/1

https://www.researchgate.net/post/How_add_references/1

https://www.researchgate.net/post/Citations_from_RG/1

https://www.researchgate.net/post/citations_in_RG/1

https://www.researchgate.net/post/How_do_you_fix_missing_citations/1

https://www.researchgate.net/post/How_to_add_missing_citation/1

Dear Pawel Pliszka As you can see by clicking on "references" in the article link you mentionedArticle THE DEVELOPMENT OF PROSUMPTION ON THE POLISH E-SERVICES MARKET

What you may try is to change the English title hereArticle E-insurance in polish information society

However, as indicated by Wolfgang R. Dick unfortunately not much can be done further. It is one of the imperfections of the RG system when it comes to citations.

Best regards.