% You can find the documentation on ftp://ctan.tug.org/tex-archive/macros/latex/exptl/biblatex/doc/biblatex.pdf

% Article
%
% An article in a journal, magazine, newspaper, or other periodical which forms a
% self-contained unit with its own title. The title of the periodical is given in the
% journaltitle field. If the issue has its own title in addition to the main title of
% the periodical, it goes in the issuetitle field. Note that editor and related
% fields refer to the journal while translator and related fields refer to the article.

@article{exampleArticle,
	% Required fields:
	author	= "Max Mustermann",
	title	= "Mustertitle - Article",
	journaltitle	= "Muster Journal",
	date	= "2017-12-13",
	% Optional fields: see documentation
}

% Book
% 
% A single-volume book with one or more authors where the authors share credit for
% the work as a whole. This entry type also covers the function of the @inbook type
% of traditional BibTeX, see § 2.3.1 for details

@book{exampleBook,
	% Required fields:
	author	= "Max Mustermann",
	title	= "Mustertitle - Book",
	date	= "2017-12-14",
	% Optional fields: see documentation
}

% Manual
%
% Technical or other documentation, not necessarily in printed form. The author or
% editor is omissible in terms of § 2.3.2.

@manual{exampleManual,
	% Required fields:
	author	= "Max Mustermann",
	title	= "Mustertitle - Manual",
	date	= "2017-12-15",
	% Optional fields: see documentation
}

% Online
%
% An online resource. author, editor, and year are omissible in terms of § 2.3.2.
% This entry type is intended for sources such as web sites which are intrinsically
% online resources. Note that all entry types support the url field. For example, when
% adding an article from an online journal, it may be preferable to use the @article
% type and its url field.

@online{exampleOnline,
	% Required fields:
	author	= "Max Mustermann",
	title	= "Mustertitle - Online",
	date	= "2017-12-16",
	url		= "http://example.url",
	% Optional fields: see documentation
}