Change your cover photoUpload Change your cover photoUpload Change your cover photo Krzysztof Sternik This user account status is Approved followers0 following1 Follow About About Posts Posts Comments Comments This user has not added any information to their profile yet.Company / InstitutionSilesian University of TechnologyCountryPolandRegistration DateJoined 10.11.2017User LocationGliwice, Poland Only fill in if you are not human