Helena Almeida, Portuguese Artist Who Painted On Photographs, Dead At 84
(ArtsJournal)

“[She] was widely considered one of Portugal’s most significant postwar artists, and … earned international recognition starting in the 1970s for her striking black-and-white images, which often portrayed impossible acts - the artist with pen making lines midair, or erasing herself with blue brushstrokes - to challenge the limitations of media.�