144132
During his career , he took numerous scientific trips throughout Europe — travels where he met and studied with scientists that included Jacob Georg Agardh ( 1813-1901 ) , Alfred Mathieu Giard ( 1846-1908 ) , Louis Mangin ( 1852-1937 ) and Narcisse Théophile Patouillard ( 1854-1926 ) .
 Jacob Georg Agardh, Alfred Mathieu Giard, Louis Mangin, Narcisse Théophile Patouillard
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Jacob Georg Agardh, Alfred Mathieu Giard, Louis Mangin, Narcisse Théophile Patouillard