Ephemeridae - Wikipedia
Mayfly - Wikipedia
Sarah Sze – use of Ephemera
Ephemera - Wikipedia, la enciclopedia libre
Sisters of Parvos/Rewards, WARFRAME Wiki
Ephemera - Wikipedia
Ephemeral architecture - Wikipedia
About this Collection, Printed Ephemera: Three Centuries of Broadsides and Other Printed Ephemera, Digital Collections
Muzeum Produkcji Zapałek, Częstochowa