Reference:

Jorma Laaksonen and Timo Honkela, editors. Advances in Self-Organizing Maps - Proceedings of WSOM 2011, 8th International Workshop. Springer, 2011.

Suggested BibTeX entry:

@book{wsom11proceedings,
    editor = {Jorma Laaksonen and Timo Honkela},
    language = {en},
    publisher = {Springer},
    title = {Advances in Self-Organizing Maps - Proceedings of WSOM 2011, 8th International Workshop},
    year = {2011},
}