Arthur Heffter (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Arthur Heffter" in English language version.

refsWebsite

Global rank English rank

3web.archive.org

1^st place

1^st place

low place

low place

3,887^th place

3,197^th place

erowid.org

"Arthur Heffter". Erowid. Archived from the original on 12 May 2021.

heffter.org

"Experiment performed on 23rd July, 1897". Heffter Research Institute. Archived from the original on 30 October 2012.
"Experiment performed on 23rd July, 1897". Heffter Research Institute. Archived from the original on 13 June 2010.

web.archive.org

"Arthur Heffter". Erowid. Archived from the original on 12 May 2021.
"Experiment performed on 23rd July, 1897". Heffter Research Institute. Archived from the original on 30 October 2012.
"Experiment performed on 23rd July, 1897". Heffter Research Institute. Archived from the original on 13 June 2010.