The previous page is sending you to https://orbi.uliege.be/bitstream/2268/209746/1/122%20Emile%20Marchal%20Bull%20Soc%20Roy%20Bota%20B%201929%20V61%202e%20ser%20V11%20p160-170.pdf.

 If you do not want to visit that page, you can return to the previous page.