«Մաքս Պլանկ»–ի խմբագրումների տարբերություն

* {{cite web |url= http://www-history.mcs.st-andrews.ac.uk/Biographies/Planck.html |title= Max Karl Ernst Ludwig Planck |author= O'Connor J. J., Robertson E. F. |date= |work= MacTutor History of Mathematics archive |description= |publisher= University of St Andrews |accessdate= 2012-04-29 |lang= en |archiveurl= https://www.webcitation.org/67vbbzwiR?url=http://www-history.mcs.st-andrews.ac.uk/Biographies/Planck.html |archivedate= 2012-05-25 |deadlink= no }}

* {{cite web |url= http://www.britannica.com/EBchecked/topic/462888/Max-Planck |title= Max Planck |author= Stuewer R. H. |date= |work= Encyclopædia Britannica |description= |publisher= |accessdate= 2012-04-29 |lang= en |archiveurl= https://www.webcitation.org/67vbcXTZy?url=http://www.britannica.com/EBchecked/topic/462888/Max-Planck |archivedate= 2012-05-25 |deadlink= no }}

 

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